1. a)Find the smallest class interval. Use five classes. (Round your answer to 1 decimal place.) b) What would be a better class interval? c)
1. a)Find the smallest class interval. Use five classes. (Round your answer to 1 decimal place.) b) What would be a better class interval? c)
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 3SE: Answer the following questions. 3. When given two separate events, how do we know whether to apply...
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A chain of sport shops catering to beginning skiers, headquartered in Aspen, Colorado, plans to conduct a study of how much a beginning skier spends on his or her initial purchase of equipment and supplies. Based on these figures, it wants to explore the possibility of offering combinations, such as a pair of boots and a pair of skis, to induce customers to buy more. A sample of 44 cash register receipts revealed these initial purchases:
| $ 140 | $ 83 | $ 139 | $ 161 | $ 175 | $ 83 | $ 129 | $ 149 | $ 141 |
| 130 | 264 | 231 | 132 | 172 | 149 | 170 | 214 | 105 |
| 220 | 126 | 90 | 171 | 162 | 229 | 121 | 117 | 149 |
| 126 | 130 | 118 | 172 | 156 | 214 | 87 | 172 | 230 |
| 162 | 195 | 128 | 126 | 142 | 118 | 127 | 130 |
1. a)Find the smallest class interval. Use five classes. (Round your answer to 1 decimal place.)
b) What would be a better class interval?
c)
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