Important MCQs Descriptive Statistics Quiz 7

The post is about the MCQs Descriptive Statistics Quiz. There are 21 multiple-choice questions covering the topics related to frequency distribution, measurement scale, measure of central tendency, measure of dispersion, data, and variables. Let us start with MCQs Descriptive Statistics Quiz with Answers.

Online MCQs about Basic Statistics

1. In a week the prices of a bag of rice were 350, 280, 340, 290, 320, 310, 300. The range is

 100

 90

 70

 60

2. The mean of 10 observations is 10. All observations are increased by 10%. The mean of the increased observations shall be

 11

 20

 100

 10

3. The number 143.9500 rounded off to the nearest tenth (one decimal place) is

 144

 143.9

 143.0

 144.0

4. The process of arranging data into rows and columns is called

 Classification

 Array

 Frequency distribution

 Tabulation

5. In a distribution of 10, 20, 30, 40, 50, the $\overline{x}$ is 30, and the sum of deviations from $\overline{x}$ will be

 30

 15

 Zero

 60

6. Which of the measures given here are based on every item of the series (uses all observations)?

 All of them

 Range

 Standard Deviation

 Quartile Deviation

7. The data which have already been collected by someone is called _______ data.

 Secondary

 Primary

 Quantitative

 Array

8. In a frequency distribution, the last cumulative frequency is 500. $Q_3$ (Third Quartile) must lie in

 375th item

 150th item

 175th item

 275th item

9. A relative frequency distribution presents frequencies in terms of _______.

 Fractions

 Percentage

 Whole numbers

 None of these options

10. The weight of the earth is _______.

 Discrete variable

 Difficult to tell

 Quantitative variable

 Qualitative variable

11. When all the values in a series occur the same number of times, then one must not compute the

 Median

 Mean

 Weighted mean

 Mode

12. If $\overline{x}$ is 4 and the distribution is 2, 3, 4, 5, 6, the sum of squared deviations from the $\overline{x}$ will be:

 12

 6

 10

 Zero

 8

13. Statistics which is not measurable are called

 A variable

 A parameter

 A constant

 Attributes

14. If the price of a commodity remains at RS. 20 per KG for the whole month then the measure of dispersion will be

 Rs. 0

 Rs. 20

 Rs. 1

 Rs. 02

15. If $\overline{X}=100$ and $Y=2X-200$ then the mean of $Y$ values will be

 100

 0

 200

 2

16. In a frequency distribution, the last cumulative frequency is 300, and the Median shall lie in the:

 160th item

 140th item

 130th item

 150th item

17. Given the $N$ values in a series, the geometric mean is

 The third root of the product of $N$ values

 The Nth root of the product of $N$ values

 The fourth root of the product of $N$ values

 The square root of the product of $N$ values

18. Find the median of the following data: 160, 180, 200, 280, 300, 320, 400

 280

 180

 300

 140

19. “The sum of squares of deviations of the values is least” when deviations are taken from

 Mode

 Mean

 Harmonic mean

 Median

20. A contractor employs 20 males, 15 females, and 5 children in his factory. Male wages are Rs. 10 per day, female Rs. 8 per day, and children Rs. 3 per day. The weighted $\overline{x}$ of wages paid per day will be

 3.86

 8.37

 10.63

 9.21

21. The average monthly production of a factory for the first 8 months is 2,500 units, and for the next 4 months, the production is 1,200 units. The average monthly production of the year will be

 3012.11 units

 2066.55 units

 5031.10 units

 4021.12 units

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MCQs Descriptive Statistics Quiz with Answers

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• Which of the measures given here are based on every item of the series (uses all observations)?
• In a week the prices of a bag of rice were 350, 280, 340, 290, 320, 310, 300. The range is
• In a frequency distribution, the last cumulative frequency is 500. $Q_3$ (Third Quartile) must lie in
• In a distribution of 10, 20, 30, 40, 50, the $\overline{x}$ is 30, and the sum of deviations from $\overline{x}$ will be
• The average monthly production of a factory for the first 8 months is 2,500 units, and for the next 4 months, the production is 1,200 units. The average monthly production of the year will be
• A contractor employs 20 males, 15 females, and 5 children in his factory. Male wages are Rs. 10 per day, female Rs. 8 per day, and children Rs. 3 per day. The weighted $\overline{x}$ of wages paid per day will be
• Find the median of the following data: 160, 180, 200, 280, 300, 320, 400
• If $\overline{x}$ is 4 and the distribution is 2, 3, 4, 5, 6, the sum of squared deviations from the $\overline{x}$ will be:
• In a frequency distribution, the last cumulative frequency is 300, and the Median shall lie in the:
• Given the $N$ values in a series, the geometric mean is
• Statistics which is not measurable are called
• The process of arranging data into rows and columns is called
• When all the values in a series occur the same number of times, then one must not compute the
• If $\overline{X}=100$ and $Y=2X-200$ then the mean of $Y$ values will be
• “The sum of squares of deviations of the values is least” when deviations are taken from
• The data which have already been collected by someone is called ———– data.
• The number 143.9500 rounded off to the nearest tenth (one decimal place) is
• The weight of the earth is ———–.
• A relative frequency distribution presents frequencies in terms of ———–.
• The mean of 10 observations is 10. All observations are increased by 10%. The mean of the increased observations shall be
• If the price of a commodity remains at RS. 20 per KG for the whole month then the measure of dispersion will be

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