Exam Stat 1204 ibsu basic THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: A company hires management trainees for entry level sales positions. Past experience indicates that only 10% will still be employed at the end of 9 months. Assume the company recently hired 6 trainees. 1) What is the probability that three of the trainees will still be employed at the end of 9 months? A) 0.0415 B) 0.0446 C) 0.0146 D) 0.0012 2) What is the probability that at least two of the trainees will still be employed at the end of 9 months? A) 0.9841 B) 0.0159 C) 0.1143 D) 0.0984 THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: A basketball player makes 80 percent of his free throws during the regular season. Consider his next 8 free throws. 3) What is the probability that he will make exactly 6 free throws? A) 0.1468 B) 0.3355 C) 0.2936 4) What the probability that he will make at least 6 free throws? A) 0.2936 B) 0.3355 C) 0.7969

D) 0.1678 D) 0.1468

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: A cereal manufacturer produces a cereal that claims to contain 16 ounces in each box. A sample of boxes results in the following table. 14 15 16 17 Weight in Ounces Probability 0.10 0.30 0.40 0.20 5) What is the mean weight of the sample of cereal boxes? A) 16.0 B) 15.7

C) 15.5

D) 16.5 D) 1.25

6) What is the standard deviation of the weight of cereal in the boxes? A) 1.19 B) 0.90 C) 0.81

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: In an office of 18 people, there are 7 men and 11 women. A sub-committee of four people will be formed from this group. 7) What is the probability that the sub-committee contains two men and two women? A) 0.261 B) 0.377 C) 0.755 8) How many different ways can you select four people from a group of 18? A) 1584 B) 3280 C) 1386

D) 0.522 D) 3060

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING