Statistics & Probability [IMO Level 1- Mathematics Olympiad (SOF) Class 10]: Questions 6 - 11 of 81

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Question number: 6

» Statistics & Probability

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Question

The king, queen and jack of clubs are removed from a deck of 52 playing cards and then well-shuffled. One card is selected from the remaining cards. The probability of getting a club is ________

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 7

» Statistics & Probability

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When two dice are thrown, the probability of getting a number always greater than 4 on the second dice is ________

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 8

» Statistics & Probability

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Two dices are thrown simultaneously. The probability of getting sum of atleast 11 is ________

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 9

» Statistics & Probability

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The mean of 20 observations is . By error, one observation was noted as was misread as 42. Then the correct mean is ________

Choices

Choice (4)Response

a.

21.5

b.

28.3

c.

29.5

d.

26.5

Question number: 10

» Statistics & Probability

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A Motor maintains an average speed of 60 km/hr while going from P to Q and maintains an average speed of 90 km/hr while coming back from Q to P. the average speed of the motor is ________.

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Choice (4)Response

a.

b.

c.

d.

Question number: 11

» Statistics & Probability

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Question

A die is thrown once. The probability of getting a number 3 or 4 is ________

Choices

Choice (4)Response

a.

0

b.

c.

d.

1

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