Statistics & Probability (IMO- Mathematics Olympiad Class 10): Questions 19 - 24 of 80

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 908 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 19

» Statistics & Probability

MCQ▾

Question

A bag contains 5 Green, 4 Aqua, 9 Blue and 6 purple marbles. If a marble is drawn at random from the bag, the probability that the marble drawn is Aqua or Purple, is ________

Choices

Choice (4) Response

a.

125

b.

113

c.

512

d.

165

Question number: 20

» Statistics & Probability

MCQ▾

Question

In a single throws of a die, the probability of getting a multiple of 3 is ________

Choices

Choice (4) Response

a.

13

b.

16

c.

34

d.

12

Question number: 21

» Statistics & Probability

MCQ▾

Question

If 92,125,180and80 occur with frequencies 12,7,6and9 respectively, then the arithmetic mean is ________

Choices

Choice (4) Response

a.

125

b.

111

c.

120

d.

115

Question number: 22

» Statistics & Probability

MCQ▾

Question

The mean of 11 observations is 30. If the mean of the first 6 observations is 40 and that of the last 6 observations is 44, then the Sixth observation is ________

Choices

Choice (4) Response

a.

174

b.

128

c.

137

d.

131

Question number: 23

» Statistics & Probability

MCQ▾

Question

The mean weight of a class of 24 students is 35 kg. if the weight of the teacher is included, the mean rises by 400 g. Then the weight of the teacher is ________

Choices

Choice (4) Response

a.

55 kg

b.

45 kg

c.

65 kg

d.

50 kg

Question number: 24

» Statistics & Probability

MCQ▾

Question

The average temperatures of Monday, Tuesday, Wednesday and Thursday was 25 . The average temperature of Tuesday, Wednesday, Thursday and Friday was 40 . If the temperature on Monday was 30 , then the temperature on Friday was ________.

Choices

Choice (4) Response

a.

30

b.

10

c.

40

d.

20

Sign In