# MATH302 Week 3 Test.docx - TEST Suppose a random variable x...

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TEST Suppose a random variable, x, arises from a binomial experiment. If n = 25, and p = 0.85, find the P(X ≥ 15) using Excel. Round answer to 4 decimal
It is known that 50% of adult workers have a high school diploma. If a random sample of 8 adult workers is selected, what is the probability that less than 6 of them have a high school
If random variable X has a binomial distribution with n=9 and P(success) =p= 0.4, find the
Feedback: in Excel,
=SQRT(9*0.4*0.6) Suppose a random variable, x, arises from a binomial experiment. If n = 14, and p = 0.13, find
The table of data obtained from shows hit information for four well known baseball players. Suppose that one hit from the table is randomly selected. NAME Single Double Triple Home Run TOTAL HITS Babe Ruth 1,517 506 136 714 2,873 Jackie Robinson 1,054 273 54 137 1,518 Ty Cobb 3,603 174 295 114 4,189 Hank Aaron 2,294 624 98 755 3,771 TOTALS 8,468 1,577 583 1,720 12,351 Find P (hit was made by Ty Cobb|The hit was a Home Run). A. 114 B. 0.033 C. 0.066 D. 0.009 Answer Key: C
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How many ways can you choose 4 cookies from a cookie jar containing 25 cookies of all the Feedback: Order does not matter. In Excel, =COMBIN(25,4) You have a club of fifteen people. You need to pick a president, treasurer, and secretary from the fifteen. How many different ways can you do this? Leave answer as whole number, do not include decimals or commas. Answer: 455 Answer Key: 2730|2,730 Feedback: Order matters. In Excel, =PERMUT(15,3) You are going to a benefit dinner, and need to decide before the dinner what you want for salad, main dish, and dessert. You have 2 different salads to choose from, 3 main dishes, and 5 desserts. How many different meals are available? Answer: