statistic a ballot box has 9 red balls and 6 yellow 4 green

statistic

a. ballot box has 9 red balls and 6 yellow 4 green. If a ball randomly extracted calculates the probability that: a. Red b. A green c. Non-yellow

Solution

a)

There are 19 balls in all. Thus,

P(red) = 9 red/19 = 9/19 or 0.473684211 [answer]

b)

P(green) = 4 green/19 = 4/19 or 0.210526316 [answer]

c)

P(non yellow) = 1 - P(yellow) = 1 - 6yellow/19 = 13/19 or 0.684210526 [answer]