Statistics and Probability (IMO- Mathematics Olympiad Class 9): Questions 48 - 53 of 101

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Passage

A car is going on a long journey for 16 hours, starting at 5.00 hrs. The speed of the car at different hours is given below:

car with its speed values is given

Calculate the values as asked in question

Time (in hrs):

5

7

9

11

13

17

15

19

21

Speed (in km/hour):

40

50

60

80

70

65

75

60

50

From the above table answer the following questions.

Question number: 48 (2 of 3 Based on Passage) Show Passage

» Statistics and Probability

MCQ▾

Question

The average speed (in km/hour) between 5.00 hrs, 7.00 hrs and 9.00 hrs is ________

Choices

Choice (4) Response

a.

52

b.

60

c.

55

d.

65

Question number: 49 (3 of 3 Based on Passage) Show Passage

» Statistics and Probability

MCQ▾

Question

The percentage of decrease in speed during 19.00 hrs and 21.00 hrs is ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 50

» Statistics and Probability

MCQ▾

Question

The median of the observation 30, 91, 0, 64, 42, 80, 30, 5, 117, 71 is ________

Choices

Choice (4) Response

a.

53

b.

51

c.

52

d.

52.5

Question number: 51

» Statistics and Probability

MCQ▾

Question

A die is thrown once. The probability of getting a number greater than 3 is ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

0

d.

Equation

Question number: 52

» Statistics and Probability

MCQ▾

Question

The average of n numbersEquation is A. if Equation is replaced by Equation is replaced by Equation , …, then the new average is ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 53

» Statistics and Probability

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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