A drug tester claims that a drug cures a rare skin disease 79% of the time. The claim is checked by testing the drug on 100 patients. If at least 77 patients are cured, the claim will be accepted. Score Find the probability that the claim will be rejected assuming that the manufacturer's claim is true. Use the normal distribution to approximate the binomial distribulion if possible. Score The probability is (Round to four decimal places as needed.) score Score

Decide whether you can use the normal distribution to approximate the binomial distribution. If you​ can, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If you​ cannot, explain why and use the binomial distribution to find the indicated probabilities.   A survey of adults found that 7​% say their favorite sport is auto racing. You randomly select 400 adults and ask them to name their favorite sport. Complete parts​(a) through​ (d).

Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 120 eligible voters aged 18-24 are randomly selected. Suppose a previous study showed that among eligible voters aged 18-24, 22% of them voted. Probability that exactly 32 voted ... The probability that exactly 32 of 120 eligible voters voted is 0.0411. (Round to four decimal places as needed.) Question Viewer

Decide whether you can use the normal distribution to approximate the binomial distribution. If you can, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If you cannot, explain why and use the binomial distribution to find the indicated probabilities. A survey of adults found that 8% say their favorite sport is auto racing. You randomly select 400 adults and ask them to name their favorite sport. Complete parts (a) through (d). .... . Determine whether a normal distribution can be used to approximate the binomial distribution. Choose the correct answer below. A. No, because np < 5. B. No, because nq < 5. C. Yes, because both np 25 and nq 2 5. (a) Find the probability that the number of people who say auto racing is their favorite sport is at most 39. (Round to four decimal places as needed.)

find the standard deviation of this probability distribution. give your answer to 2 decimal places. x 0,1,2,3 p(x) 0.15,0.3,0.05,0.5

Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Enter a number. Round your answer to four decimal places.) u = 24; o = 4,4 P(x 2 30) =

Let the time between two consecutive arrivals at a grocery store checkout line be exponentially distributed with a mean of four minutes. Find the probability that the next arrival does not occur until at least three minutes have passed since the last arrival.   Multiple Choice 0.7364 0.5276 0.2636 0.4724

For a recent period of 33 years, there were 93 major earthquakes in a particular region. Find the mean number of major earthquakes per year.mean =   Now, find the probability distribution for the number of earthquakes in a randomly selected year:Give answers to 3 decimal places. x Probability 0   1   2   3   4   5   6 or more