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Difference between r1.4 and the current
@@ -17,4 +17,5 @@
|| 5 || 0 |||| 4 || 1 ||
$\Sigma_i=1 f = N $
$\Sigma f = N $
$\overline{X} = \Sigma (X*f) / \Sigma f$
빈도분포 표 (frequency table)
data = { 8, 9, 8, 7, 10, 9, 9, 6, 4, 9, 8, 7, 8, 10, 9, 8, 6, 9, 7, 8, 8 }
n = 20
min = ?
max = ?
min = ?
max = ?
| X | f |
| 10 | 2 |
| 9 | 5 |
| 8 | 7 |
| 7 | 3 |
| 6 | 2 |
| 5 | 0 |
| 4 | 1 |
