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Akira recorded the length, in minutes, of each phone call she made for a month, as summarized in the table below. Use
[tex]y = \frac{x - 7.5}{5} [/tex]
to calculate an estimate for
(a) the mean
(b) the standard deviation

$Akira recorded the length in minutes of each phone call she made for a month as summarized in the table below Use texy fracx 755 texto calculate an estimate for class=$

Respuesta :

Akira recorded the length, in minutes, of each phone call she made for a month, as summarized in the table below. Use [tex]y = \frac{x - 7.5}{5} [/tex]to calculate an estimate for(a) the mean(b) the standard deviation ​

Respuesta :

Akira recorded the length, in minutes, of each phone call she made for a month, as summarized in the table below. Use
[tex]y = \frac{x - 7.5}{5} [/tex]
to calculate an estimate for
(a) the mean
(b) the standard deviation