Two percent of the circuit boards manufactured by a particular company are defective. In a random sample of 25 circuit boards find the probability that: A. Exactly 3 circuit boards are defective B. The first defective circuit board is the 15th one selected C. What is the expected number of defective circuit boards C.

In a recent poll of female college students, 70% stated that they plan to graduate with a STEM degree. A math teacher decides to randomly sample 15 female college students. A. Find the probability that exactly 6 out of the 15 plan to graduate with a STEM degree. B. Find the probability that between 5 and 9 (inclusive) out of the 15 plan to graduate with a STEM degree. C. Find the probability that at least 7 out of the 15 plan to graduate with a STEM degree. D. Find the expected number of female college students out of the 15 that plan to graduate with a STEM degree.

25 of 30 The following graph shows the mean change in mass of two groups of animals fed on different diets over a period of 2 years: Time course of mass change 275 250 225 200 175 150 125 100 0 3 69 12 15 18 21 24 Time (months) Which of these is the most misleading property of this graph? OThe errors vary between data points. O A best fit curve wasn't shown The interpolating lines have different styles. False zero None of these is relevant to this graph. Mass (g) HH H HH HH HH

48% of all violent felons in the prison system are repeat offenders. If 44 violent felons are randomly selected, find the probability that   a. Exactly 18 of them are repeat offenders. Correct   b. At most 20 of them are repeat offenders. c. At least 19 of them are repeat offenders. d. Between 14 and 19 (including 14 and 19) of them are repeat offenders.

55% of all violent felons in the prison system are repeat offenders. If 38 violent felons are randomly selected, find the probability that   a. Exactly 22 of them are repeat offenders. b. At most 20 of them are repeat offenders. c. At least 20 of them are repeat offenders. d. Between 18 and 23 (including 18 and 23) of them are repeat offenders.

A survey from Teenage Research Unlimited found that 40% of teenage consumers receive theirspending money from part-time jobs. If 5 teenagers are selected at random:a. Find the probability that at least 3 of them will have part-time jobs.b. Find the probability that no more than 4 will have part-time jobs.c. Find the probability that less than 5 but greater than 3 will have part-time jobs.

61% of all violent felons in the prison system are repeat offenders. If 41 violent felons are randomly selected, find the probability that a. Exactly 24 of them are repeat offenders. b. At most 26 of them are repeat offenders. c. At least 22 of them are repeat offenders. d. Between 22 and 27 (including 22 and 27) of them are repeat offenders.