6] 4 red balls numbered 1 thru 4 and 3 blue balls numbered 3 thru 5 are placed in a bag, a ball is drawn from the bag, find the probability of choosing a red or 5 ball [2/7 or 5/9 or 4/7 or 5/7?
7] refer to #6 find the probability of choosing a blue or 4 ball [1/3 or 5/9 or 4/7 or 5/7?
8] 1,4,5,8 are white; find the probability of spinning white or 8 [1/8 or 3/8 or 1/2 or 5/8? and [9] refer to #8; find the probability of spinning black or an even number [2,3,6,7 are black which is correct 1/4 or 1/2 or 3/4 or 1? thanks alot
2006-07-30 06:37:07 · 2 answers · asked by Anonymous in Education & Reference ➔ Homework Help
6) total # balls = 7
red ball probability = 4/7
5 ball probability = 1/7
7) blue ball probability = 3/7
4 ball probability = 2/7
8) total # spin options = 8
spinning white probability = 4/8
spinning 8 probability = 1/8
9) spinning black probability = 4/8
spinning even probability = 4/8
2006-07-30 06:47:08 · answer #1 · answered by Anonymous · 0⤊ 0⤋
6] 4 red balls numbered 1 thru 4 and 3 blue balls numbered 3 thru 5 are placed in a bag, a ball is drawn from the bag, find the probability of choosing a red or 5 ball [2/7 or 5/9 or 4/7 or 5/7?
probability of choosing a red ball = 4/7
probability of choosing a non-red 5 ball = 1/7
probability of choosing a red or 5 ball = 4/7 + 1/7 = 5/7
7] refer to #6 find the probability of choosing a blue or 4 ball [1/3 or 5/9 or 4/7 or 5/7?
probability of choosing a blue ball = 3/7
probability of choosing a non-blue 4 ball = 1/7
probability of choosing a blue or 4 ball = 3/7 + 1/7 = 4/7
8] 1,4,5,8 are white; find the probability of spinning white or 8 [1/8 or 3/8 or 1/2 or 5/8? and [9] refer to #8; find the probability of spinning black or an even number [2,3,6,7 are black which is correct 1/4 or 1/2 or 3/4 or 1? thanks alot
Is there a picture of the spinner? How many numbers are on the spinner to land on?
2006-07-30 13:45:58 · answer #2 · answered by math guru 4 · 0⤊ 0⤋