Statistics and Probability [IMO Level 1- Mathematics Olympiad (SOF) Class 9]: Questions 1 - 6 of 103

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Question 1

Question MCQ▾

A die is rolled 10,500 times. The frequency of each outcome is shown in the table. What is the empirical probability of the outcomes of multiples of 3?

Define the Die is Rolled 10,500 Times

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 2

Question MCQ▾

Two dice are thrown. What is the probability of obtaining a total of 10 or 11?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 3

Question MCQ▾

The median of the following numbers 99, 54, 78, 65, 35,45, 66 is________

Choices

Choice (4)Response

a.

66

b.

35

c.

65

d.

54

Edit

Question 4

Question MCQ▾

The mean weight of 80 students in a class is 60 kg. The mean weight of boys is 70 kg while that of the girls is 50 kg. the number of boys and girls are________

Choices

Choice (4)Response

a.

10,30

b.

40,40

c.

35,75

d.

45,35

Edit

Question 5

Question MCQ▾

If a number x is chosen at random from the numbers 1,2, 3 and the number y is selected from 1,4, 9, and then is________

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 6

Question MCQ▾

A contractor employed 18 labourers at ₹ 12 each per day, 10 labourers at ₹ 13.50 each per day, 5 labourers at ₹ 25 each per day and 2 labourers at ₹ 42 each per day. The average wages paid is ________

Choices

Choice (4)Response

a.

₹ 20

b.

₹ 24

c.

₹ 28

d.

₹ 16

Edit