Middelværdi, varians og standardafvigelse | Desmos

Expression 6: StartFraction, total left parenthesis, "M" Subscript, "i" "d" "t" "p" "u" "n" "k" "t" , Baseline times "H" Subscript, "y" "p" "p" "i" "g" "h" "e" "d" , Baseline , right parenthesis Over 25 , EndFraction equals 174.2

equals

174.2

6

Expression 7: 0.3 2 times 165 plus 0.4 4 times 175 plus 0.2 4 times 185 equals 174.2

equals

174.2

7

Varians:

8

Expression 9: 0.3 2 left parenthesis, 165 minus 174.2 , right parenthesis squared plus 0.4 4 left parenthesis, 175 minus 174.2 , right parenthesis squared plus 0.2 4 left parenthesis, 185 minus 174.2 , right parenthesis squared equals 55.3 6

equals

55.3 6

9

Standardafvigelse (spredning):

10

Expression 11: StartRoot, 55.3 6 , EndRoot equals 7.4 4 0 4 3 0 0 9 5 1

equals

7.4 4 0 4 3 0 0 9 5 1

11

Punkter

12

22

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