a https://www.mathxl.com/Stu dent/PlayerHomework.aspx? MTH 240-41H Homework: Hom

Question

a https://www.mathxl.com/Stu dent/PlayerHomework.aspx? MTH 240-41H Homework: Homework 6.2 Score: 0.5 of 1 pt 16 of 18 (16 complete) 6.2.53-T According to a survey, 22% of residents o acontry 25 years old or older had earned at least a bachelors degree. You e pe ringas y and would like at least 10 people in the study to have earned at least a bachelor's degree. When technology is used, use the Tech Help button for further assistance (a) How many residents of the country 25 years old or older do you expect to randomly select? (b) How many residents of the country 25 years old or older do you have to randomly select to have a probability 0.912 HW Score: 73.95%, 13.31 of 18 pts -Question Help earned at least a bachelor's degree? (a) The number of randomly selected residents is 46. (Round up to the nearest integer) nearest integer.) that the sample contains at least 10 who have selected residents, with a probability 0.912 containing at least 10 who have earmed,at least a bachelor's degree Round up to the

Explanation / Answer

Solution:-

a) The number of randomly selected residents is 46.

p = 22/100

p = 0.22

x = 10

We want atleast 10 people in the study to have earned at least bahcelor'e degree so E(x) = 10

E(x) = n × p

10 = n × 0.22

n = 45.45

n = 46

b) The number of randomly selected residents is 63.

p = 22/100

p = 0.22

x = 10

P(x > 10) = 0.912

n = 63

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.