Shopping Mall Promotion A shopping mall has set up a promotion as follows. With

Question

Shopping Mall Promotion A shopping mall has set up a promotion as follows. With any mall purchase of $50 or more, the customer gets to spin the wheel shown here. If a number 1 comes up, the customer wins $10. If the number 2 comes up, the customer wins $5; and if the number 3 or 4 comes up, the customer wins a discount coupon. Find the following probabilities. a. The customer wins $10. b. The customer wins money. c The customer wins a coupon. Selecting a State Choose one of the 50 states at random. a. What is the probability that it begins with M? b. What is the probability that it doesn't begin with a vowel? Human Blood Types Human blood is grouped into four types. The percentages of Americans with each type are listed below. 43% A 40% B 12% AB 5% Choose one American at random. Find the probability that t is person a. Has type O blood b. Has type A or B c. Does not have type O or A Gender of College Students In 2004, 57.2% of all enrolled college students were female. Choose one enrolled student at random. What is the probability that the student was male?

Explanation / Answer

15. Total numbers = 20

Number of times 1 occurs = 2

Number of times 2 occurs = 2

So,

Number of times 3 or 4 occurs = 20 - (2 + 2) = 20 - 4 = 16

a) P(Customer wins $10)

= P(1 occurs)

= 2 / 20

= 0.1

b) P(Customer wins money)

= P(1 or 2 occurs)

= (2 + 2) / 20

= 4 / 20

= 0.2

c) P(Customer wins a coupon)

= 16 / 20

= 4 / 5

= 0.8

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

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