samplequiz4 - Stat 119 Sample quiz 15 Name Red id Use the...

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Stat 119 Name: ______________________ Red id: ______________________ Use the following information to answer questions 1-2 Suppose a fun-size bag of skittles has 5 red, 7 green, 6 purple and 8 yellow (a total of 26 skittles). You select two skittles from the bag, one at a time, without looking. (Without Replacement) 1. What is the probability that both of the skittles are green? A) 0.0646 B) 0.0725 C) 0.2692 D) 0.5092 Answer: 2. The probability that exactly one of the two skittles is red is: A) 0.037 B) 0.162 C) 0.323 D) 0.311 E) 0.155 Answer: 3. Advertisements for statistics texts suggest that 79% come with a CD with statistical tools, 35% have online help, and 18% have both aids. Find the probability that a randomly selected statistics text has statistical tools or online help. A) 1.14 B) 0.18 C) 0.96 D) 0.28 E) 0.61 Answer: Use the following information to answer questions 4-6 Are people happy in their marriages? The table below shows results from the 2002 General Social Survey for married adults classified by gender and level. Suppose one married adult is selected at random. Gender Very Happy Pretty Happy Not too Happy Total Male 221 95 9 325 Female 149 120 9 278 Total 370 215 18 603 4. What is the probability that a married adult selected at random is pretty happy or very happy? 5.
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samplequiz4 - Stat 119 Sample quiz 15 Name Red id Use the...

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