Descriptive Statistics
Practice Questions
GMAT Quantitative Reasoning › Descriptive Statistics
A large group of students is given a standardized test. The following information is given about the scores:
Mean: 73.8
Standard deviation: 6.3
Median: 71
25th percentile: 61
75th percentile: 86
Highest score: 100
Lowest score: 12
What is the interquartile range of the tests?
The average of 10, 25, and 70 is 10 more than the average of 15, 30, and x. What is the missing number?
What is the median of the following numbers?
A large group of students is given a standardized test. The following information is given about the scores:
Mean: 73.8
Standard deviation: 6.3
Median: 71
25th percentile: 61
75th percentile: 86
Highest score: 100
Lowest score: 12
What is the interquartile range of the tests?
The average of 10, 25, and 70 is 10 more than the average of 15, 30, and x. What is the missing number?
What is the mean of the following data set in terms of 
What is the median of the following numbers?
What is the mean of the following data set in terms of
The average of 10, 25, and 70 is 10 more than the average of 15, 30, and x. What is the missing number?
What is the mean of the following data set in terms of