Add Math Probability Chapter 18

Q1 A number is choosen at random from the set {1, 2, 5, 7, 10,14}. Find the probability that the number is choosen is
a) larger than 5
b) an odd number
c) larger than 5 or an odd number

Q2 The letter of the word GROUPS are arranged in a row. Find the probability that an arrangement chosend at random
a) begins with the letter P
b) begins with the letter P and end with a vowel

Q3 Two event A dn B, are such that P(A) = 5/8, P(AUB) = 3/4 and P(ANB) = 1/8 Find the value of P(B).

Q4 Azman plays a game with each of the other 3 players, B, C and D. The probabilities of him losing to players B, C and D are 3/4, 2/5 and 1/3 respectively. Find the probability that Azman loses
a) in all three games
b) in at least 2 out of the three games

Q5 A number is chosen at random from the set {10,11,12,13,14,15,16,17} Calculate the probability
a) an even number or a multiple of 3 is chosen
b) an odd number or a primer number is chosen.


Pls finish before next class (11/07/2010)