# CA 2 Exam Revison: Question Preview (ID: 17762)

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A class has 10 boys and 12 girls, if one is picked randomly, what is the probability it's a boy?
a) 45.45%
b) 54.54%
c) 50%
d) 10%

Rolling a dice, what is the probability of rolling a 3?
a) 20%
b) 16.6%
c) 33.33%
d) 50%

Find the mean of the following numbers, 1, 2, 4, 8, 10, 2, 5, 6, 3, 2.
a) 3.4
b) 3.9
c) 4.7
d) 4.3

Find the mode of the following numbers, 1, 2, 4, 8, 10, 2, 5, 6, 3, 2.
a) 10
b) 2
c) 1
d) 3

Find the median of the following numbers, 1, 2, 4, 8, 10, 2, 5, 6, 3, 2.
a) 3.5
b) 2
c) 3
d) 4

Rooms listed from 1-10, what is the probability of getting a prime number room?
a) 30%
b) 20%
c) 40%
d) 50%

Rooms listed from 1-10, what is the probability of getting a even number room?
a) 50%
b) 40%
c) 30%
d) 20%

Rooms listed from 1-10, what is the probability of getting an odd number room?
a) 10%
b) 15%
c) 80%
d) 50%

Rooms listed from 1-10, what is the probability of getting a even above 6 number room?
a) 10%
b) 20%
c) 30%
d) 40%

Rooms listed from 1-10, what is the probability of getting an odd less than 6 number room?
a) 70%
b) 20%
c) 30%
d) 100%

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