Statistics and Probability [IMO Level 1- Mathematics Olympiad (SOF) Class 9]: Questions 95 - 100 of 103

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Passage

A Bus is going on a long journey for 25 hours, starting at 6.00 hrs. The speed of the car at different hours is given below:

Calculate the Values as Asked in Question
Time (in hrs) :689131418202225
Speed (in km/hour) :306050406070806020

From the above table answer the following questions.

Question 95 (3 of 3 Based on Passage)

Question MCQ▾

The average speed (in km/hour) between 6.00 hrs, 8.00 hrs, 9.00 hrs and 13.00 hrs is ________

Choices

Choice (4)Response

a.

96

b.

48

c.

67

d.

45

Edit

Question 96

Question MCQ▾

In a class test, in Science, 45 students scored 88 marks, 15 students scored 75 marks and 5 scored 60 marks. The mean of their score is (approximately) ________

Choices

Choice (4)Response

a.

75 marks

b.

80 marks

c.

83 marks

d.

90 marks

Edit

Question 97

Question MCQ▾

The mean, median and mode of the following numbers 2, 4, 5, 6, 7, 6, 5, 4, 3, 2, 1, 1, 1, 6, 8, 8, 4,3, 2,2 are________

Choices

Choice (4)Response

a.

3,4, 5

b.

3,3, 5

c.

3,4, 3

d.

4,4, 2

Edit

Question 98

Question MCQ▾

Mean marks scored by 100 students were found to be 120. Later it was observed that a score of 59 was misread as 95. Then the correct mean is ________

Choices

Choice (4)Response

a.

119.64

b.

169

c.

179.82

d.

169.82

Edit

Question 99

Question MCQ▾

A contractor employed 14 labourers at ₹ 18 each per day, 12 labourers at ₹ 22 each per day, 9 labourers at ₹ 32 each per day and 5 labourers at ₹ 62 each per day. The average wages paid is ________

Choices

Choice (4)Response

a.

₹ 28

b.

₹ 14

c.

₹ 30

d.

₹ 26

Edit

Question 100

Question MCQ▾

One card is drawn from a well-shuffled deck of 52 cards. The probability of drawing an ace is ________

Choices

Choice (4)Response

a.

b.

c.

d.

Edit