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Question,Answer A,Answer B,Answer C,Answer D,Correct Answer,Explanation "In a positively skewed dataset of house prices, which measure of center would be most affected by a few extremely high-priced houses?",Mean,Median,Mode,Range,A,"The mean is affected by extreme values and would increase due to t...

Question,Answer A,Answer B,Answer C,Answer D,Correct Answer,Explanation "In a positively skewed dataset of house prices, which measure of center would be most affected by a few extremely high-priced houses?",Mean,Median,Mode,Range,A,"The mean is affected by extreme values and would increase due to the high-priced houses, unlike the median and mode." "A scientist is studying the distribution of a certain plant height. If the distribution is symmetrical, which measure of center should they report?",Mean,Median,Mode,Range,A,"In a symmetrical distribution, the mean, median, and mode are equal, so the mean is typically reported." Which visualization is best suited for showing the distribution of salaries at a company to easily identify skewness and outliers?,Histogram,Box plot,Pie chart,Line graph,B,"A box plot is effective for identifying skewness and outliers, showing the spread of salaries and any extreme values." "In the context of finance, if a stock's returns are negatively skewed, what does this suggest about the potential for losses?",The potential for losses is minimal,The potential for losses is higher than the potential for gains,The distribution is symmetrical,The mean and median are equal,B,A negatively skewed distribution indicates a higher likelihood of extreme losses compared to gains. "If a dataset of exam scores is skewed to the right, which visualization would help best show the skewness and spread of the scores?",Scatter plot,Histogram,Pie chart,Time plot,B,"A histogram is suitable for visualizing the skewness and spread of exam scores, showing how scores are distributed." "In a research study on income levels, the median income is reported instead of the mean. What does this imply about the income distribution?",The distribution is likely skewed,The distribution is perfectly symmetrical,The data has no outliers,The range of incomes is narrow,A,Using the median suggests that the income distribution is skewed or has outliers that would affect the mean. "When analyzing the distribution of daily temperatures over a year, which measure of spread would be most useful to understand temperature variability?",Mean,Median,Standard deviation,Mode,C,"Standard deviation measures how much the temperatures vary around the mean, providing insight into temperature variability." "A biologist measures the weights of a species of birds. If the mean weight is significantly higher than the median, what does this indicate about the data?",The data is negatively skewed,The data is positively skewed,The data is symmetrical,The data has no outliers,B,"When the mean is higher than the median, the distribution is positively skewed, suggesting a long tail to the right." Which measure of center would be most appropriate to use when analyzing the average salary at a company with a few extremely high salaries?,Mean,Median,Mode,Standard deviation,B,"The median is more appropriate because it is not affected by extremely high salaries, unlike the mean." "If a dataset of test scores has a mean of 70 and a mode of 80, what does this suggest about the distribution of the scores?",The distribution is negatively skewed,The distribution is positively skewed,The distribution is symmetrical,The standard deviation is high,A,"If the mode is greater than the mean, the distribution is negatively skewed, with a longer tail on the left." "In a data analysis of monthly rainfall, which measure would best show how rainfall varies each month?",Mean,Median,Standard deviation,Mode,C,Standard deviation provides a measure of how monthly rainfall amounts vary around the average. "A positively skewed dataset of house prices has a mean of \$500,000 and a median of \$350,000. What does this indicate about the distribution?","Most house prices are above \$500,000","Most house prices are below \$500,000",The distribution is uniform,The mean and median are equal,B,"In a positively skewed distribution, the mean is higher than the median, indicating most values are below the mean." Which visualization would best help identify both the central tendency and spread of a dataset in one view?,Box plot,Histogram,Pie chart,Scatter plot,A,"A box plot shows the median, quartiles, and potential outliers, giving a clear view of central tendency and spread." When would it be more useful to use the interquartile range (IQR) instead of the standard deviation?,When the data is symmetrical,When the data has extreme outliers,When calculating the mean,When the mean equals the median,B,The IQR is less affected by outliers and provides a more robust measure of spread for skewed data. "A financial analyst notices that the mean annual return of an investment is 12%, but the returns are highly volatile. Which measure of spread should they report?",Mean,Median,Mode,Standard deviation,D,"Standard deviation quantifies the volatility and spread of returns around the mean, making it essential for financial analysis."

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