Question

A poll by a reputable research organization found that 14% of adults who participated in youth and/or high school sports now have an income greater than $100,000In comparison, 8% of adults who did not participate in youth and/or high school sports have an income greater than $100,000. Consider a random sample of 25adults, all of whom have participated in youth and/or high school sports. Complete parts a through c below.a. What is the probability that fewer than 18 of these adults have an income greater than $100,000?The probability is 1.0000(Round to four decimal places as needed.)b. What is the probability that between 7 and 18, non-inclusive of these adults have an income greater than $100,000?The probability is(Round to four decimal places as needed.)

Answer 1

Given:

Percentage of students who participated that now have an incme gretaer $100,000 = 14% = 0.14

Percentage of students who did not participate that now have an incme gretaer $100,000 = 8% = 0.08

Sample size, n = 25

Let's answer part b.

(b) The proabability that between 7 and 18 non-inclusive of these adults have an income greater than $100,000.

To find the probability, we have:

[tex]P(7Where: