1l 2l 31 4 61 A real estate agent has 10 properties that she shows. She feels th

Question

1l 2l 31 4 61 A real estate agent has 10 properties that she shows. She feels that there is a 10% chance of selling any one property. The chance of selling any one property is independent of selling another property. 3, a. What probability distribution model would be appropriate for describing the number of properties sold? b. Compute the expected number of properties to be sold. c. Compute the standard deviation of the number of properties to be sold. d. Compute the probability of selling exactly one property. e. Compute the probability of selling exactly five properties. f Compute the probability of selling at least two properties. A pediatric nurse is studying the number of babies born at a hospital with congenial defects. Data shows that on the average, one baby with a congenial defect is born per month. 4. a. What type of probability distribution is appropriate for this problem? b. Find the expected number of babies born in one year with congenial defects c. Find the standard deviation of the number of babies born in one year with congenial defects. d. Find the probability that no babies are born with congenial defects in one y e. Find the probability that at least one baby is born with a congenial defect ina year. f. Find the probability that exactly 12 babies are born with congenial defect in a year. The turkeys found in a particular county have an average weight of 15.6 pounds with a standard deviation of 4.0 pounds. Forty-five turkeys are randomly selected for a county fair. a. Find the probability that the average weight of the turkeys will be less than 14.5 5. pounds. What is the probability that the average weight of the turkeys will be more than 17 pounds? b. c. Find the probability that the average weight of the turkeys will be between 15 and 16 pounds. 2 of 3 Words:0 of 815

Explanation / Answer

Please 1 question at a time.

5. Mean weighyt = 15.6
Stdev = 4
n = 45

We will use the Z-distibution and the Z statistic to solve sice n>30

a. P(X<14.5) = P(Z< (14.5-15.6)/(4/sqrt(45))) = P(Z<-1.8448) = .0325

b. P(X>17) = P(Z>2.3479) = .0094

c. P(15<X<16) = P(-1<Z<.671) = .7488-.1572 = .5916

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

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