Question: A game involves drawing one card from a deck of 40 cards(10 red, 10 blue, 10 green ,10 yellow). you win if you draw red or blue. what is the probability of winning , and is the game fair if winning gets $1 and losing loses $1?
A) 0.25;unfair game
B) 0.50;fair game
C) 0.40;slightly unfair
D) 0.20;unfair game
Correct answer: B
Grade: 7 | Topic: Statistics and Probability | Difficulty: Hard | Standard: 7.SP.C.7