Question
Suit Sales The number of suits sold per day at a retail store is shown in the table, with the corresponding probabilities. Number of suits
Suit Sales The number of suits sold per day at a retail store is shown in the table, with the corresponding probabilities.
| Number of suits sold X | 17 | 18 | 19 | 20 | 21 |
| Probability PX | 0.2 | 0.2 | 0.3 | 0.1 | 0.2 |
Find the standard deviation. Round your answer to one decimal place as needed.
| Standard deviation: = |
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Sacred Mathematics Japanese Temple Geometry
Authors: Fukagawa Hidetoshi, Tony Rothman, Freeman Dyson
1st Edition
1400829712, 9781400829712
