Mathematics - Class 11 Mock Test 10

10%

Question 1 of 10

1. The following data shows the heights and weights of the students of class 9. Which of the following is correct?

	Height	Weight
Mean	170 cm	55 kg
Variance	130 cm²	25 kg²

Coefficient of variation of weights = Coefficient of variation of heights

Coefficient of variation of weights = ½ Coefficient of variation of heights

Coefficient of variation of weights < Coefficient of variation of heights

Coefficient of variation of weights > Coefficient of variation of heights

Question 1 of 10

Question 2 of 10

2. Which of the following statements is false?

Delhi and Mumbai are cities of India

81 is a square and cube

Chandigarh is capital of Punjab and Haryana

16 is even number and divisible by 8

Question 2 of 10

Question 3 of 10

3. If A∪B=S then set is said to be mutually exhaustive.

True

False

Question 3 of 10

Question 4 of 10

4. Which symbol denote impossible event?

Question 4 of 10

Question 5 of 10

5. In direct method to prove statement “If p then q” is valid or not, we assume p to be __________ and prove q to be _____________

true, false

true, true

false, false

false, true

Question 5 of 10

Question 6 of 10

6. If standard deviation of a data is 40 and the coefficient of variation is 25600, then find the mean.

6.4

0.64

640

Question 6 of 10

Question 7 of 10

7. The probability can be negative.

True

False

Question 7 of 10

Question 8 of 10

8. A coin is tossed and if head come then a red dice is rolled and if tail come then a blue dice is rolled then what is the possible number of outcomes?

Question 8 of 10

Question 9 of 10

9. Probability of getting head on an unbiased coin is ________

1/4

1/2

Question 9 of 10

Question 10 of 10

10. If the standard deviation of a data is 820 and mean of the data is 50, find the coefficient of variation.

1640

16.4

1.64

164

Question 10 of 10