Answer
a) Probability that randomly selecting someone who is under 5 years old =0.066.
b) Probability that randomly selecting someone who is 45 years or over = 0.41.
c) Probability that randomly selecting someone who is not 65 years or over = 0.838.
d) Probability that randomly selecting someone who is between 20 and 34 years old = 0.198.
Work Step by Step
From the Pie chart ,
a)
Probability that randomly selecting someone who is under 5 years old is =6.6% = 6.6/100 = 0.066.
b)
Probability that randomly selecting someone who is 45 years or over =
Estimated percentage between 45 and 64 years old + Estimated percentage between 65 and 74 years old + Estimated percentage of age 75 or over.
= 24.8% + 9.6% + 6.6%
=0.248+0.096 + 0.066 = 0.41
c)
Probability that randomly selecting someone who is not 65 years or over = 1-Probability that someone whose age is 65 or over.
= 1- (9.6% + 6.6 % ) = 1- (0.096+ 0.066) = 0.838
d)
Probability that randomly selecting someone who is between 20 and 34 years old = Estimated percentage between 20 and 24 years old + Estimated percentage between 25 and 34 years old.
= 6.4% + 13.4% = 0.064 + 0.134 = 0.198
