74% of adults cannot name a supreme court justice. You randomly select five adul

Question

74% of adults cannot name a supreme court justice. You randomly select five adults and ask each if they can name any of the justices. The random variable represents the number of adults who cannot name a Supreme Court Justice Complete parts (a) through (d)) below. Find the mean of the binomial distribution. mu = (Round to two decimal places as needed.) Find the variance of the binomial distribution, sigma^2 = (Round to two decimal places at needed.) Find the standard deviation of the binomial distribution, sigma = (Round to two decimal places as needed.) What values d the random variable would you consider unusual? Explain your reasoning. On average, out of 5 adults cannot name a supreme court justice, with a standard deviation of adults. The values x = 0 and x = would be unusual because their probabilities are 0.05. (Type integers or decimals rounded to two decimal places as needed.)

Explanation / Answer

a)here mean =np=5*0.74=3.7

b)variance =(np(!-p)) =0.96

c) std deviation =(variance)1/2 =0.98

on average 3.7 out of 5 adults cannot.............std deviation of 0.98 adults ....x=0 and x=1 would be ,,,,their probabilities are less then 0.05.

Related Questions

Navigate

• Browse (All)
• Browse 7
• Subjects

---

---

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