Answer:
(a)0.85
(b)0.38
(c)0.002
(d)0.986
(e)0.12
Step-by-step explanation:
Brown = 12%,
Yellow = 15%
Red = 12%
Blue = 23%
Orange= 23%
Green = 15%
(a) Probability that a randomly selected peanut M&M is not yellow.
P(Yellow) = 15/100 =0.15
Therefore: P(Not Yellow)
=1-0.15 =0.85
(b) Probability that a randomly selected peanut M&M is orange or yellow.
P(Orange OR Yellow)
= P(Orange)+P(Yellow)
=23/100 + 15/100
=38/100 =0.38
(c) Probability that three randomly selected peanut M&M's are all red.
P(Red and Red and Red) = 12/100 X 12/100 X 12/100 =0.001728 = 0.002
(d) Probability that neither of them are red.
P(neither of them are red)= 1- P(both are red) = 1-(12/100 X 12/100)
= 1-0.0144 = 0.9856 = 0.986
(e)Probability that at least one of them is red.
P(RB or RY or RR or Rb or RO or RG)
=(0.12 X 0.12)+(0.12 X 0.15)+(0.12 X 0.12)+(0.12 X 0.23)+(0.12 X 0.23)+ (0.12 X 0.15)
= 0.12