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Probability questions

Probability questions | form four Basic Mathematics

Find Probability examination questions, form four Basic Mathematics in acaproso.com

# Question
1

A fair die and coin are tossed once. What is the probability of a head on the coin and
an even number of the die showing up?


Mathematical Calculation
2

A box has 8 red balls and 11 white balls of the same size. A ball is drawn at random
from the box. What is the probability that it is
(i) red
(ii) white?


Mathematical Calculation
3

A fair die is tossed once and the number showing up is recorded. What is the probability of an even number grater than two showing up?


Mathematical Calculation
4

A box contains 4 white balls and 5 black balls. Two balls are drawn at random from the box. Find the probability that both balls drawn are

(i) white (ii) black.


Mathematical Calculation
5

It is known that ^{n}	extrm{C}_r=^{n}	extrm{C}_{n-r}
Find x given that ^{20}	extrm{C}_{18}=^{20}	extrm{C}_x


Mathematical Calculation
6

Find the probability that a number chosen at random from a set of integers between 10 and 20 inclusive is either a prime number or a multiple of five.

 


Mathematical Calculation
7

Three defective transistors and two good transistors are mixed in a box. Two transistors are randomly selected. Find the probability that they are both defective if the selections are made
(i) with replacement
(ii) without replacement.


Mathematical Calculation
8

In a class of thirty pupils, one prize is awarded for English,
another for Kiswahili, and a 'third for Mathematics. In how many •
ways can the winners be chosen?


Mathematical Calculation
9

A girl.has two jackets, four nice blouses, and three pairs of good
shoes. How many different outfits, consisting of a jacket, blouse,
and a pair of shoes, can she make out of these?


Mathematical Calculation
10

A boy has five different flags. In how many ways can he fly them one
above the other?


Mathematical Calculation