Is this a valid probability distribution? Days | Probability 0 | 0.68 1 | 0.05 2 | 0.07 3 | 0.08 4 | 0.05 5 | 0.04 6 | 0.01 7 | 0.02

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IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X = IQ of an individual. + Part (a) O Part (b) Part (c) Mensa is an organization whose members have the top 2% of all IQs. Find the minimum IQ needed to qualify for the Mensa organization. Write the probability statement. P(X > x) = |0.98

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 nomal distribution to approximate the binomial distribution if possible. Score The probability is (Round to four decimal places as needed.) score score

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Quesiton 45

A probability distribution function has which characteristic(s)? (Select all characteristic that applies.) Each probability is between zero and one, inclusive. Each probability is larger than one. The sum of the probabilities is one. The sum of the probabilities is larger than one.

Determine the required value of the missing probability to make the distribution a discrete probability distribution. P(x) 0.28 4 0.28 0.22 P(4) = (Type an integer or a decimal.) %3D Enter your answer in the answer box and then click Check Answer. All parts showing esc -> % 5

According to the Empirical Rule. Find specified probability. (Round to FOUR decimal places. Write like 0.1234). P(Z <-3.14)