A group of 56 people was classified according to gender and age. a. What percent

Question

A group of 56 people was classified according to gender and age. a. What percent of the people are twenty or older 20? b. What percent of the people are less than 20 and female? c. What is probability of randomly a female from the population? d. What percent of people who are less than 20 are Male? e. What percent of males are 20 years old or Older? f What is the probability of randomly selecting a female who is also less than 20? If a family is planning on having three children, what is the probability of having more girls than boys? In a game of chance, people will draw ducks out of a stream of water. The bottom of each duck indicates whether the person wins $1, $2, $3, $5, or $10. The probabilities for winning are given in the table below. What is wrong-with this table?

Explanation / Answer

a) Percentage of people are tewnty or older 20 = (23/56)*100 = 41.07%

b) Percentage of people are less than 20 and female =(10/56)*100 = 17.86%

c) Probability of randomly selecting a female from population = 26/56 = 0.46

d) Percent of People who are less than 20 are Male = (23/56)*100 = 41.07%

e) Percent of male are 20 years old or older = (7/56)*100 = 12.5%

f) Prob of afemale who is less than 20 = 10/56= 0.18

Gender 20 or older Less than 20 total Male 7 23 30 Female 16 10 26 Total 23 33 56

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