MATHEMATICS PROBLEM SOLVER

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Tuesday, 22 November 2016

PROBABILITY 11

A card is chosen at random from a deck of 52 cards. It is then replaced and a second card is chosen. What is the probability of choosing a queen and then an eight?

solution

P(queen)	=	4
P(queen)	=	52

P(8)	=	4
P(8)	=	52

P(queen and 8)	=	P(queen)	·	P(8)

	=	4	·	4
	=	52	·	52

	=	16
	=	2704

	=	1
	=	169

Hence probability of choosing a queen and then an eight is ¹/169

TRY THIS………….

A card is chosen at random from a deck of 52 cards. It is then replaced and a second card is chosen. What is the probability of choosing a king and then a ten?

MATHEMATICS PROBLEM SOLVER

Tuesday, 22 November 2016

PROBABILITY 11

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