10th class Math Unit 6 MCQs
Chapter 6 MCQs 10th Class Math
Basic Statistics
1. A grouped frequency table is also called:
a. Frequency polygon
b. Data
c. Frequency distribution
d. None of these
2. A histogram is a set of adjacent:
a. Circles
b. Squares
c. Closed figure
d. Rectangles
3 A frequency polygon is a many sided:
a. Circle
b. Closed figure
c. Square
d. Rectangle
4. A cumulative frequency table is also called:
a. Less than cumulative frequency distribution
b. Frequency distribution
c. Data
d. None of these
5. In some cumulative frequency polygon frequencies are plotted against:
a. Class limits
b. Midpoint
c. Lower class boundaries
d. Upper class boundaries
6. Arithmetic mean is a measure that determines a value of the variable under study by dividing the sum of all values of the variable by their:
a. Denominator
b. Number
c. Group
d. None of these
7. A Deviation is defined as a difference of any value of the variable from a:
a. Histogram
b. Constant
c. Sum
d. All of these
8. A data in the form of frequency distribution is called:
a. Histogram
b. Grouped data
c. Same
d. Ungrouped data
9. Mean of variable with similar observations say constant k is:
a. Zero
b. Negative
c. Positive
d. K itself
10. Mean is affected by change in:
a. Origin
b. Value
c. Space
d. Ratio
11. Mean is affected by change in:
a. Rate
b. Place
c. Ratio
d. Scale
12. Sum of the deviations of the variable X from its mean is always:
a. Same
b. Zero
c. One
d. None of these
13. The n positive root of the product of the x1,x2,x3,. . . . . .,xn observation is called:
a. Geometric mean
b. Mode
c. Median
d. Mean
14. The value obtained by reciprocating the mean of the reciprocal of x1,x2,x3,. . . . . .,xn observation is called:
a. Harmonic mean
b. Geometric mean
c. Mode
d. Median
15. The most frequent occurring observation in a data set is called:
a. Harmonic mean
b. Mode
c. Mean
d. Median
16. The measure which determines the middlemost observation in a data set is called:
a. Mean
b. Median
c. Mode
d. All of these
17. The observations that divide a data set into four equal parts are called:
a. Percentiles
b. Deciles
c. Harmonic mean
d. Quartiles
18. The spread or scatterness of observations in a data set is called:
a. Quartiles
b. Average
c. Mode
d. Range
19. The measures that are used to determine degree or extent of variation in a data set are called measures of:
a. Average
b. Dispersion
c. Mode
d. Central tendency
20. The extent of variation between two extreme observations of a data set is measured by:
a. Quartiles
b. Average
c. Range
d. None of these
21. The mean of the squared deviations of xi observations from their arithmetic mean is called:
a. Range
b. Variance
c. Average
d. Standard deviation
22. The positive square root of mean of the squared deviation of xi observations from their arithmetic mean is called:
a. Standard deviation
b. Harmonic mean
c. Average
d. Range
23. If A = 98, Σf d = −5,Σf = 30 then x is:
a. 97.80
b. 97.73
c. 97.93
d. 97.83
24. The median of 87,87,88,89,89,90,91,91,92 and 98 is:
a. 89.6
b. 89.3
c. 89.4
d. 89.5
25. Geometry means of three numbers 2,4,8 is:
a. 4
b. 2
c. 3.67
d. 8
26. Mean of 5,8,10,7 and 12 is:
a. 8.4
b. 8.2
c. 8.5
d. 8.3
27. Geometry mean of the numbers 1,2,5,9 is:
a. 9
b. 2
c. 1
d. 3
28. The median of 88.03,94,94.90,95.05,94.50 and 84 is:
a. 94.25
b. 94.30
c. 94.60
d. 94.40
29. The mode of the data 2,4,4,2,6,4,8 is:
a. 2
b. 3
c. 4
d. 7
30. If f x = 2935 and f = 30 then x is equal to:
a. 97.83
b. 95.83
c. 98.83
d. 96.83
31. The geometric mean of the observation 2,4,8 is:
a. 4
b. 2
c. 10
d. 8
32. If x = 20, n = 10 then the sum of x is:
a. 250
b. 150
c. 300
d. 200
33. The mode of values 2,4,6,6,6,8,8,8 is:
a. 6,8
b. 6
c. 2,8
d. 8
34. If variance is equal to 36 then the standard deviation is:
a. -6
b. 36
c. 5
d. 6
35. The mode of the 1,3,5,3,7,9 is:
a. 5
b. 1
c. 7
d. 3
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