_split_part_1.csv

QuestionType,QuestionText,AnswerA,AnswerB,AnswerC,AnswerD,CorrectAnswers,CorrectAnswerText,CorrectAnswerInfo multiple\_choice,"A quality control engineer is monitoring the thickness of metal sheets produced in a factory. The mean thickness is 2.5 mm, with a standard deviation of 0.2 mm. What thickne...

QuestionType,QuestionText,AnswerA,AnswerB,AnswerC,AnswerD,CorrectAnswers,CorrectAnswerText,CorrectAnswerInfo multiple\_choice,"A quality control engineer is monitoring the thickness of metal sheets produced in a factory. The mean thickness is 2.5 mm, with a standard deviation of 0.2 mm. What thickness range includes 68% of the sheets?",2.3 to 2.7 mm,2.1 to 2.9 mm,2.4 to 2.6 mm,2.0 to 3.0 mm,A,2.3 to 2.7 mm,68% of the data falls within one standard deviation of the mean: 2.5 ± 0.2 = 2.3 to 2.7 mm. multiple\_choice,"A biostatistician is analyzing the ages of patients in a clinical trial. The ages have an IQR of 15 years. If Q3 is 75 years, what is the upper boundary to identify outliers?",82.5 years,90 years,97.5 years,105 years,C,97.5 years,The upper boundary is Q3 + 1.5 \* IQR = 75 + 1.5 \* 15 = 97.5 years. multiple\_choice,"A meteorologist is studying daily rainfall amounts. The mean rainfall is 10 mm, with a standard deviation of 2 mm. What is the probability of a day having rainfall between 8 mm and 12 mm?",50%,68%,95%,99.70%,B,0.68,68% of the data falls within one standard deviation of the mean: 10 ± 2 = 8 to 12 mm. multiple\_choice,"An economist is analyzing weekly wages in a city. The wages are right-skewed, with some individuals earning significantly more than others. Which measure of central tendency is most appropriate?",Mean,Median,Mode,Range,B,Median,The median is less affected by outliers and is a more appropriate measure for skewed data. multiple\_choice,"A pharmaceutical company measures the reaction time of a drug in patients. The mean reaction time is 30 minutes, with a standard deviation of 4 minutes. What reaction time would be considered unusually fast?",26 minutes,20 minutes,34 minutes,28 minutes,B,20 minutes,A reaction time 2.5 standard deviations below the mean: 30 - 2.5 \* 4 = 20 minutes is unusually fast. multiple\_choice,"A data analyst is examining monthly sales figures. The mean sales are \$50,000, with a standard deviation of \$8,000. If a month has sales of \$66,000, how many standard deviations above the mean is this?",1 standard deviation,2 standard deviations,2.5 standard deviations,3 standard deviations,B,2 standard deviations,"The difference is \$66,000 - \$50,000 = \$16,000, which is 16,000 / 8,000 = 2 standard deviations." multiple\_choice,"A psychologist measures the stress levels of patients. The data is left-skewed, with most patients having low stress levels and a few with very high levels. Which measure of spread should be used?",Range,Standard Deviation,Interquartile Range (IQR),Mean,C,Interquartile Range (IQR),The IQR is less affected by extreme values and is appropriate for skewed data. multiple\_choice,"An engineer measures the length of metal rods. The mean length is 100 cm, with a standard deviation of 2 cm. If a rod measures 106 cm, how unusual is this length?",2 standard deviations above the mean,3 standard deviations above the mean,1 standard deviation above the mean,0.5 standard deviations above the mean,B,3 standard deviations above the mean,"The difference is 106 - 100 = 6 cm, which is 6 / 2 = 3 standard deviations above the mean." multiple\_choice,"A farmer measures the weight of apples in an orchard. The IQR of apple weights is 150 grams. If Q1 is 100 grams, what weight would be an outlier on the lower end?",0 grams,50 grams,75 grams,90 grams,A,0 grams,"The lower boundary is Q1 - 1.5 \* IQR = 100 - 1.5 \* 150 = -125 grams. Since weight cannot be negative, any weight close to 0 grams would be considered an outlier." multiple\_choice,A university is analyzing the GPAs of students from different majors to see if any major has consistently higher or lower GPAs. What visualization would be most effective for this comparison?,Histogram,Box Plot,Pie Chart,Stem Plot,B,Box Plot,"A box plot is useful for comparing the spread and central tendency of GPAs across different majors, as well as identifying outliers." multiple\_choice,A transportation department is collecting data on the daily number of cars passing through a toll station over the past year. They want to analyze the overall traffic pattern. What visualization should they use?,Time Plot,Box Plot,Bar Chart,Stem Plot,A,Time Plot,A time plot is best for showing how traffic patterns change over the year and identifying trends or seasonal effects. multiple\_choice,A nutritionist wants to understand the distribution of daily calorie intake among a group of 100 people. They also want to identify if there are any outliers. Which visualization is best?,Pie Chart,Histogram,Box Plot,Stem Plot,C,Box Plot,A box plot will summarize the spread and highlight any outliers in the daily calorie intake data. multiple\_choice,A stock market analyst is studying the daily returns of a stock over the past 5 years. They want to see if the data is normally distributed or skewed. What visualization should they use first?,Scatter Plot,Box Plot,Histogram,Line Chart,C,Histogram,"A histogram will show the shape of the distribution of daily returns, revealing if it is normal or skewed." multiple\_choice,An e-commerce company is analyzing the number of purchases made per hour throughout the day. They want to see the busiest times. Which visualization is most appropriate?,Time Plot,Box Plot,Bar Chart,Scatter Plot,A,Time Plot,A time plot will show how the number of purchases changes throughout the day and identify peak shopping hours. multiple\_choice,A wildlife researcher is studying the wingspan of a bird species. They have measured the wingspan of 20 birds and want to visualize the spread while keeping the exact measurements visible. What should they use?,Stem Plot,Box Plot,Histogram,Pie Chart,A,Stem Plot,A stem plot is suitable for a small dataset and will display the exact wingspan measurements while showing the distribution. multiple\_choice,A meteorologist is comparing the rainfall amounts in two neighboring cities over the last decade to see which city has more consistent rainfall. What visualization should they use?,Line Chart,Box Plot,Bar Chart,Stem Plot,B,Box Plot,A box plot allows for a clear comparison of the rainfall distribution and variability between the two cities. multiple\_choice,A health researcher wants to study the effect of a new diet on weight loss. They have recorded weight changes of 15 participants. What is the best visualization for showing the spread of weight changes?,Box Plot,Histogram,Stem Plot,Scatter Plot,C,Stem Plot,"A stem plot is useful for a small dataset, allowing the researcher to see the exact values and the spread of weight changes." multiple\_choice,A school administrator wants to compare the final exam scores of students in two different classrooms to see if one class performed significantly better. What visualization should they use?,Pie Chart,Box Plot,Time Plot,Stem Plot,B,Box Plot,"A box plot is ideal for comparing the distributions and medians of exam scores between the two classes, showing any differences or outliers." multiple\_choice,A scientist is measuring the concentration of a chemical in a river at multiple locations. The data shows some very high values. What measure of spread should they use to summarize the data?,Standard Deviation,Range,Interquartile Range (IQR),Mode,C,Interquartile Range (IQR),The IQR is a robust measure of spread that is not affected by very high values (outliers) and gives a better summary of the data. multiple\_choice,An economist is analyzing the distribution of household incomes in a country. The data is highly skewed with a few very wealthy households. Which measure of central tendency is most appropriate?,Mean,Median,Mode,Range,B,Median,"The median is preferred for skewed data because it is not affected by extremely high or low values, giving a more accurate representation of a typical income." multiple\_choice,A researcher has collected a dataset of reaction times (in milliseconds) for a psychological test. They want to see if there are any extremely fast or slow reaction times. What should they do?,Calculate the mean and standard deviation,Generate a box plot,Use a scatter plot,Draw a bar chart,B,Generate a box plot,A box plot will help identify any outliers in reaction times and show the spread of the data. multiple\_choice,A chef is analyzing customer ratings (on a scale from 1 to 5) for different dishes at a restaurant. They want to see which dish is the most popular. What should they focus on?,The mean rating,The range of ratings,The mode of the ratings,The standard deviation of ratings,C,The mode of the ratings,"The mode will show which rating is most frequently given, helping to identify the most popular dish." multiple\_choice,An urban planner is studying the distribution of building heights in a city. They have a dataset with 500 entries and want to understand how heights are distributed and if there are any skyscrapers that stand out. What visualization should they use?,Stem Plot,Box Plot,Pie Chart,Histogram,B,Box Plot,A box plot will highlight any extreme values (like skyscrapers) and summarize the distribution of building heights. multiple\_choice,A sports coach is comparing the sprint times of athletes from different teams to see which team has the most consistent performance. What visualization is appropriate?,Time Plot,Scatter Plot,Box Plot,Histogram,C,Box Plot,A box plot will allow the coach to compare the spread and consistency of sprint times across different teams. multiple\_choice,"A real estate agent is analyzing the square footage of homes in a neighborhood. The data is right-skewed, with a few extremely large homes. Which measure of central tendency would be most appropriate to report?",Mean,Median,Mode,Range,B,Median,The median is less affected by extremely large values and would provide a better measure of central tendency for the square footage. multiple\_choice,"A scientist is comparing the lifespans of two different species of fish. One species has very consistent lifespans, while the other varies widely. Which measure of spread should they compare?",Range,Interquartile Range (IQR),Standard Deviation,Mode,C,Standard Deviation,Standard deviation will quantify the variability and show the difference in the consistency of lifespans between the two species. multiple\_choice,"A company is reviewing the distribution of hours employees work per week. Most employees work between 35-40 hours, but a few work over 60 hours. What visualization would best highlight this distribution and outliers?",Scatter Plot,Box Plot,Bar Chart,Histogram,B,Box Plot,"A box plot will highlight the central range of work hours and identify any outliers, such as those working over 60 hours." multiple\_choice,"A nutritionist wants to analyze the sugar content in different brands of cereal. The data has a wide range, and some cereals have extremely high sugar content. What measure of central tendency should be used?",Mean,Median,Mode,Range,B,Median,The median is less affected by extremely high sugar content and would be a more accurate measure of central tendency. multiple\_choice,A car manufacturer tracks the fuel efficiency (miles per gallon) of various car models. The data is roughly symmetrical. Which measures of central tendency and spread should they use to summarize the data?,Mean and Standard Deviation,Median and Range,Mode and Interquartile Range (IQR),Mean and Range,A,Mean and Standard Deviation,"When the data is roughly symmetrical, the mean and standard deviation are appropriate measures to summarize central tendency and spread." multiple\_choice,"A retailer analyzes sales data from the holiday season and finds a bimodal distribution. What does this suggest about the data, and how should it be visualized?",The data has two peaks; use a histogram,The data is uniformly distributed; use a box plot,The data is normally distributed; use a scatter plot,The data has a single peak; use a bar chart,A,The data has two peaks; use a histogram,"A bimodal distribution has two peaks, and a histogram is the best way to visualize this." multiple\_choice,A financial advisor is evaluating the returns of different investment portfolios. One portfolio has a mean return of 8% but is very volatile. What should they emphasize when explaining the risk to a client?,The mean return,The mode of returns,The standard deviation,The median return,C,The standard deviation,The standard deviation should be emphasized to explain the volatility and risk associated with the investment portfolio. multiple\_choice,A biologist is studying the weights of a population of turtles. The data includes some outliers due to unusually large turtles. What visualization and measure of central tendency should they use?,Scatter Plot and Mean,Box Plot and Median,Histogram and Mode,Pie Chart and Range,B,Box Plot and Median,"A box plot will help identify outliers, and the median will provide a more accurate measure of central tendency." multiple\_choice,"A software engineer is tracking the response times of a web application. The data is left-skewed, with most response times being fast, but a few outliers being very slow. What should they report as the typical response time?",Mean,Median,Mode,Standard Deviation,B,Median,"The median is more appropriate for left-skewed data, as it is not affected by slow outliers." multiple\_choice,"A city council is analyzing the ages of residents in a community. The data shows that most residents are young adults, but there are also a significant number of elderly residents. What term describes this distribution?",Bimodal,Normal,Left-skewed,Uniform,A,Bimodal,"The distribution is bimodal, with two significant groups: young adults and elderly residents." multiple\_choice,"An engineer is comparing the lifespan of two types of light bulbs. One type has a consistent lifespan, while the other has a wider range. What measure should they compare to highlight this difference?",Mean,Standard Deviation,Median,Mode,B,Standard Deviation,Standard deviation will highlight the difference in consistency between the lifespans of the two types of light bulbs. multiple\_choice,A teacher analyzes the test scores of a large class. The scores are normally distributed. What percentage of students scored within one standard deviation of the mean?,0.5,0.68,0.95,0.997,B,0.68,"In a normal distribution, approximately 68% of the data falls within one standard deviation of the mean." multiple\_choice,"A data analyst is exploring the distribution of daily water consumption in a city. The data is right-skewed, with a few extremely high usage days. What measure of spread should be emphasized?",Range,Standard Deviation,Interquartile Range (IQR),Mode,C,Interquartile Range (IQR),The IQR is less affected by extreme values and provides a better measure of spread for skewed data.