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Class 11 Economics (Statistics For Economics) Chapter 5 Measures Of Central Tendency Quiz 18 (25 MCQs)

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1. What does the median represent in a set of numbers?
2. Is the following question statistical or non statistical?How many cars are in the parking lot?
3. This statistical number is the middle number of the data set.
4. The (a) is the average of the numbers.
5. Positive Skewness is where the graph
6. The mean of 5, 10, 15, 20, 25 is:
7. The number of books borrowed in the library from Monday to Friday last week were 58, 60, 54, 35 and 97 respectively. Find the mean
8. Find the Upper Quartile (Q3) of the following numbers:84, 88, 72, 74, 98, 16, 94
9. What is mode?
10. Kayte took a sample of 50 pieces of data. She added up all of the pieces of data and then divided by 50. What measure of center is she working on?
11. What happens to the median of the following set of data if 15 is added?17, 31, 28, 16, 45, 20
12. When finding the mean, it is necessary to arrange the data items in order.
13. In which of the following situations would the mean be an appropriate measure of central tendency? I. when the data set contains no outliers II. when using categorical data III. when an exact average is needed IV. when the middle value is needed
14. Students in Year 8 are arranged in eleven classes. The class sizes are 23, 24, 24, 26, 27, 28, 30, 24, 29, 24, 27. What is the modal class size (mode)?
15. The prices at several different stores for a pair of shoes are shown below. $ 78, $ 79, $ 81, $ 82, $ 83Two days later, another store has the same shoes on sale for $ 65. How does the new price affect the data?
16. What is the range of 45, 56, 23, 74, and 63?
17. Mr. Pusey times the speed of his sprinters every Friday. This week he had them run from one school building to the next. There times were in seconds were:52.6, 61.3, 74.8, 78.2, 86.2.What was the mean time?
18. Which measure of central tendency best represents this set of data:3, 18, 2, 0, 1, 0, 2, 1
19. Ellana scores these number on her spelling test:4, 6, 7. She would like her mean to be 6. What will she have to score next?
20. It is the value with the greatest frequency
21. Find the median:12, 15, 13, 18, 23, 5?
22. What is the median of the following data set:1, 1, 2, 4, 4, 6?
23. How would the mode change if a five was removed from the data set?4, 8, 5, 17, 5, 4, 9, 5, 6, 82
24. The sum of all the data items divided by the number of data items, is the measure of central tendency called the .....
25. Mathew sold 78 apples on Monday, 58 apples on Tuesday, 80 apples on Wednesday, and 64 apples on Thursday. Find the average number of apples sold by Mathew.
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