11th Grade Grouped Data Mean Quizzes, Questions & Answers

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The Ultimate Mean Median Mode Test! Quiz

The Ultimate Mean Median Mode Test! Quiz assesses understanding of statistical concepts including mean, median, mode, standard deviation, and data distribution analysis. It's designed to challenge and enhance statistical skills,...

Questions: 10 | Attempts: 215 | Last updated: Mar 20, 2023

Sample Question 1
A scores from 2012 is listed below. Calculate the sample mean and standard deviation 29, 26, 13, 23, 23, 25, 17, 22, 17, 19, 12, 26, 30, 30, 18, 14, 12, 26, 17, 18

20.50, 5.79

20.50, 5.94

20.85, 5.79

20.85, 5.94

Sample Question 2
Provided that the data above is normally distributed with a mean of 18 and standard deviation of 6, determine the proportion of students with a 33 or higher.

0.0062

0.0109

0.0124

0.0217

Sample Question 3
A sample of 20 observations has a standard deviation of 3. The sum of the squared deviations of observations from the sample mean is

20

23

29

60