# PPSC FPSC KKPSC SPSC BSPC Lecturer Statistics Online Test 8

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 Test Instructions:- Test Name Lecturer Statistics Subject Statistics Test 8 Test Type MCQs Total Questions 25 Total Time 20 Minutes Total Marks 100
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You have 20 minutes to pass to the quiz.

Lecturer Statistics Online Test No. 8

1 / 25

While computing the arithmetic mean of a frequency distribution, the each value of a class is considered equal to:

2 / 25

The elimination of extreme scores at the top of the set has the effect of:

3 / 25

Scores that differ greatly from the measures of central tendency are called:

4 / 25

Given X1=20 and X2= -20. The arithmetic mean will be:

5 / 25

The total of all the observations divided by the number of observations is called:

6 / 25

Which of the following statements is always true?

7 / 25

Ten families have an average of 2 boys. How many boys do they have together?

8 / 25

If the arithmetic mean of the two numbers X1 and X2 is 5 if X1=3, then X2 is:

9 / 25

Any measure indicating the centre of a set of data, arranged in an increasing or decreasing order of magnitude, is called a measure of:

10 / 25

If the arithmetic mean of 20 values is 10, then sum of these 20 values is:

11 / 25

If a constant value is added to every observation of data, then arithmetic mean is obtained
by:

12 / 25

When all the values in a series occur the equal number of times, then it is not possible to calculate the:

13 / 25

The sum of deviations taken from mean is:

14 / 25

Step deviation method or coding method is used for computation of the:

15 / 25

The elimination of extreme scores at the bottom of the set has the effect of:

16 / 25

The sum of deviations is zero when deviations are taken from:

17 / 25

The mean of 10 observations is 10. All the observations are increased by 10%. The mean of increased
observations will be:

18 / 25

The measure of central tendency listed below is:

19 / 25

The population mean Î¼ is called:

20 / 25

Change of origin and scale is used for calculation of the:

21 / 25

The sum of the squares fo the deviations about mean is:

22 / 25

The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from:

23 / 25

The arithmetic mean is highly affected by:

24 / 25

The mean for a set of data obtained by assigning each data value a weight that reflects its relative importance within the set, is called:

25 / 25

When the values in a series are not of equal importance, we calculate the: