Podcast
Questions and Answers
What is the main difference between a sample and a population?
What is the main difference between a sample and a population?
- A population refers to a subset of the sample, while a sample describes the whole population.
- A sample is the entire set of outcomes, while a population is a subset of the sample.
- A sample is used for descriptive statistics, while a population is used for inferential statistics.
- A population includes all outcomes, while a sample is just a subset of those outcomes. (correct)
Which type of statistics is used when stating 'By 2040 at least 3.5 billion people will run short of water'?
Which type of statistics is used when stating 'By 2040 at least 3.5 billion people will run short of water'?
- Prescriptive statistics
- Descriptive statistics (correct)
- Inferential statistics
- Predictive statistics
What level of measurement would 'Rankings of golfers in a tournament' fall under?
What level of measurement would 'Rankings of golfers in a tournament' fall under?
- Ratio-level
- Ordinal-level (correct)
- Interval-level
- Nominal-level
'Categories of magazines in a physician’s office' belong to which level of measurement?
'Categories of magazines in a physician’s office' belong to which level of measurement?
'Marital status of nurses in a hospital' would be classified as which type of variable?
'Marital status of nurses in a hospital' would be classified as which type of variable?
'Time it takes to run a marathon' is an example of what type of variable?
'Time it takes to run a marathon' is an example of what type of variable?
What is the mean undergraduate GPA for the top-ranked medical schools?
What is the mean undergraduate GPA for the top-ranked medical schools?
What is the median number of short-term parking spaces at the airports?
What is the median number of short-term parking spaces at the airports?
In the undergraduate GPA data, what is the mode?
In the undergraduate GPA data, what is the mode?
What is the mid-range of the number of short-term parking spaces at the airports?
What is the mid-range of the number of short-term parking spaces at the airports?
Which city has more variable number of stories in the tallest buildings according to the data provided?
Which city has more variable number of stories in the tallest buildings according to the data provided?
Based on the waiting times provided, which group of patients' waiting times is more variable?
Based on the waiting times provided, which group of patients' waiting times is more variable?
What is the sample variance for the amount of Ghanaian auto sales for the 6 years shown in the data?
What is the sample variance for the amount of Ghanaian auto sales for the 6 years shown in the data?
If the mean waiting time for admitted patients changes to 90.2 minutes with a standard deviation of 8.5 minutes, how would this affect the variability compared to discharged patients?
If the mean waiting time for admitted patients changes to 90.2 minutes with a standard deviation of 8.5 minutes, how would this affect the variability compared to discharged patients?
If Kumasi had a standard deviation of 5.7 for the number of stories in its tallest buildings, what effect would this have on the comparison with Accra?
If Kumasi had a standard deviation of 5.7 for the number of stories in its tallest buildings, what effect would this have on the comparison with Accra?
If one more year of auto sales data had a value of 16.3 million dollars, how would this affect the sample variance compared to before?
If one more year of auto sales data had a value of 16.3 million dollars, how would this affect the sample variance compared to before?
Which of the following variables can be classified as qualitative?
Which of the following variables can be classified as qualitative?
Which measure of central tendency should be used when there is an extreme value in the data set?
Which measure of central tendency should be used when there is an extreme value in the data set?
What type of variable is the number of students making appointments with a math tutor each day?
What type of variable is the number of students making appointments with a math tutor each day?
For which situation is the mean the most appropriate measure of central tendency?
For which situation is the mean the most appropriate measure of central tendency?
If the sum of five values is 320 and the mean is 64, what is the sum of these values?
If the sum of five values is 320 and the mean is 64, what is the sum of these values?
In a set of five values where four are given as 6, 10, 7, and 12, if the mean of all five values is 8.2, what is the fifth value?
In a set of five values where four are given as 6, 10, 7, and 12, if the mean of all five values is 8.2, what is the fifth value?
What is the mode of the compensation costs for production workers in U.S. dollars?
What is the mode of the compensation costs for production workers in U.S. dollars?
What is the modal class for the compensation costs of production workers?
What is the modal class for the compensation costs of production workers?
What is the mean hourly compensation cost for production workers in U.S. dollars?
What is the mean hourly compensation cost for production workers in U.S. dollars?
Which class has the highest frequency for the production workers' compensation costs?
Which class has the highest frequency for the production workers' compensation costs?
What is the mode of the compensation costs in U.S. dollars?
What is the mode of the compensation costs in U.S. dollars?
How many modal classes are there for the compensation costs of production workers?
How many modal classes are there for the compensation costs of production workers?
