11th Math Probability MCQ Chapter Quiz: Check knowledge with instant result

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Probability MCQ Test

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Time: 10 Minutes for 10 Question.

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11th Math: Statistics

1 / 10

1. Calculate the mean deviation about the median for the provided dataset: 3, 9, 5, 3, 12, 10, 18, 4, 7, 19, 21.

5.27

4.27

7.25

None

2 / 10

2. The variance of 20 observations is 5. If each observation is multiplied by 2, find the new variance of the resulting observations.

10

20

30

None

3 / 10

3.

5

7

10

None

4 / 10

4.

10.16

16

11

None

5 / 10

5. Find the variance of the following data: 6, 8, 10, 12, 14, 16, 18, 20, 22, 24

74

4.74

5.74

None

6 / 10

6. The mean and standard deviation of 100 observations were calculated as 40 and 5.1, respectively by a student who took by mistake 50 instead of 40 for one observation. Select correct standard deviation?

5

10

25

None

7 / 10

7. The mean and standard deviation of six observations are 8 and 4, respectively. If each observation is multiplied by 3, find the new mean and new standard deviation of the resulting observations.

6, 12

24, 12

24, 48

None

8 / 10

8. The mean of 5 observations is 4.4 and their variance is 8.24. If three of the observations are 1, 2 and 6, find the other two observations.

1 and 9

4 and 5

4 and 9

None

9 / 10

9.

7.77

5.77

6.77

None

10 / 10

10.

7

3.12

6.12

None

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Probability Mock Test

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Chapter wise quiz of 11th class Math MCQ

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