Question
1.A random sample of 295 car buyers was asked about the reason that they chose the car that they did. The results are given in
1.A random sample of 295 car buyers was asked about the reason that they chose the car that they did. The results are given in the table below:
Reason for Choosing a Car | Freq |
safety | 81 |
reliability | 58 |
cost | 49 |
performance | 37 |
comfort | 50 |
looks | 20 |
Find the probability that a randomly selected car buyer will be in the category "comfort". Give your answer as a fraction. Give your answer rounded to three decimal places. 2.A bag of M&M's has 5 red, 2 green, 6 blue, and 3 yellow M&M's. What is the probability of randomly picking: (Round to 4 decimal places) a) a yellow? b) a blue or green? c) an orange?
3. A group of people were asked if they had run a red light in the last year. 497 responded "yes", and 313 responded "no". Find the probability that if a person is chosen at random, they have run a red light in the last year. Give your answer as a fraction or decimal accurate to at least 3 decimal places
4. In a brand recognition study, 1044 consumers knew of Ebay, and 41 did not. Use these results to estimate the probability that a randomly selected consumer will recognize Ebay. Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol. prob =? %
5. At I Love Food restaurant, you can choose from 2 appetizers, 7 entrees and 2 desserts. How many three-course meals can you order? I could have ? three-course meals.
6. Suppose a designer has a palette of 14 colors to work with, and wants to design a flag with 3 vertical stripes, all of different colors. How many possible flags can be created?
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