Statistics & Probability (IMO- Mathematics Olympiad Class 10): Questions 52 - 57 of 79

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Question number: 52

» Statistics & Probability

MCQ▾

Question

When two dice are thrown, the probability of getting the odds in favour of getting the sum 5 is ________

Choices

Choice (4) Response

a.

53

b.

85

c.

18

d.

35

Question number: 53

» Statistics & Probability

MCQ▾

Question

The mean weight of a class of 34 students is 46.5 kg. if the weight of the teacher is included, the mean rises by 500 g. Then the weight of the teacher is ________

Choices

Choice (4) Response

a.

62 kg

b.

175 kg

c.

64 kg

d.

72 kg

Question number: 54

» Statistics & Probability

MCQ▾

Question

The average of 10 number is 60. If one of the numbers is excluded, the mean gets reduced by 10. Then the excluded number is ________

Choices

Choice (4) Response

a.

165

b.

150

c.

145

d.

155

Question number: 55

» Statistics & Probability

MCQ▾

Question

If 55,68,36,28and85 occur with frequencies 3,2,4, 6and1 respectively, then the arithmetic mean is ________

Choices

Choice (4) Response

a.

34.26

b.

26.34

c.

62.43

d.

43.62

Question number: 56

» Statistics & Probability

MCQ▾

Question

A jar contains 8 Pink cubes, 5 Pink spheres, 6 Orange cubes, and 6 Orange spheres. If you select an object at random, what is the probability that the object is Orange or a cube?

Choices

Choice (4) Response

a.

35

b.

75

c.

45

d.

25

Question number: 57

» Statistics & Probability

MCQ▾

Question

The mean of 16,23,32,19and518, is ________

Choices

Choice (4) Response

a.

3150

b.

2133

c.

9133

d.

4990

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