Homework Answers
| frequency(f) | |||||||
| from | to | f | m | f*M | f*(m-xbar)2 | ||
| 119 | < | 120 | 1 | 119.5 | 119.5 | 11.84 | |
| 120 | < | 121 | 5 | 120.5 | 602.5 | 29.78 | |
| 121 | < | 122 | 19 | 121.5 | 2308.5 | 39.42 | |
| 122 | < | 123 | 27 | 122.5 | 3307.5 | 5.24 | |
| 123 | < | 124 | 12 | 123.5 | 1482 | 3.76 | |
| 124 | < | 125 | 10 | 124.5 | 1245 | 24.32 | |
| 125 | < | 126 | 5 | 125.5 | 627.5 | 32.76 | |
| 126 | < | 127 | 3 | 126.5 | 379.5 | 38.01 | |
| 127 | < | 128 | 2 | 127.5 | 255 | 41.58 | |
| total | 84 | 10327 | 226.70 | ||||
| average= | 122.94 | ||||||
( please try above and reply if any value comes wrong)
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