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Class 11 Economics (Statistics For Economics) Chapter 5 Measures Of Central Tendency Quiz 3 (25 MCQs)

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1. In 2019 the following number of babies were born in the Emerald City each month:12, 35, 18, 17, 13, 27, 12, 18, 27, 33, 15What is the range?
2. What does the mean represent in a set of numbers?
3. Sam works as an apprentice at the butcher. He is 5'9" and has a medium build. He is 19 years old. What does Sam weigh?
4. Determine the mean of the following set of numbers:40, 61, 95, 79, 9, 50, 80, 63, 109, 42
5. If 20 is added to the data set below, which statement will be true?50, 55, 55, 60, 62
6. The mode score on the Unit 1 Test was 94% Which of these interpretations must be correct?
7. What is the mean of the data set:10, 15, 20, 25, 30?
8. If a number is added to a set that is the same as the mean, how does this affect the mean?
9. The salary of the employees in the office were $ 15, 000; $ 18, 000; $ 16, 000; $ 14, 000; $ 90, 000; and $ 17, 000. What is the best measure of the central tendency of the salaries?
10. Lizzy had test scores of:72, 94, 108, 60What is the RANGE of her test scores?
11. Jasmine has spent $ 50, $ 72, $ 22 and $ 15 each of the last 4 weeks. If she wants to make sure she spends an average of $ 40 a week or less, what is the most Jasmine can spend next week?
12. TRUE OR FALSE?The middle number of the data after ordering from least to greatest is called the mean.
13. Grouped Data-A set or array of things or observation that has not undergone any classification.
14. In a perfectly symmetrical data set, how do the mean, median, and mode compare?
15. The ages of weekend basketball players are 40, 42, 37, 20, 35, 28, 32, 43, 39, and 34 respectively. Find the mean and median ages
16. Midterm exam scores for a small advanced neuroanatomy class are provided below.87, 99, 75, 87, 94, 75, 35, 75What is the modal value from the test scores?
17. Which measure of central tendency best represents this set of data:13, 13, 11, 13, 10, 12, 11
18. When should you use the median as a measure of centrality?
19. There can be more than one mean
20. The range is a measure of
21. By how much will the mean vary if the outlier is included?79, 69, 81, 73, 38, 86, 68
22. Mean salary of 10 teachers is 6000, what is the average salary?
23. What measure of central tendency is calculated by adding all the values and dividing the sum by the number of values?
24. To find the average of a set of numbers, add up all the items and divide by .....
25. How is the standard deviation calculated?
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