love22172
contestada

the frequency distribution shows the lengths, in inches, of available baseball bat at a batting cage. what is the mean of the frequency distribution?

Baseball bat length| 27 28 31 33 34
F| 2 5 3 1 4

Respuesta :

nobillionaireNobley
The mean of a frequency distribution is given by

[tex]\bar{x}= \frac{\Sigma fx}{\Sigma f} \\ \\ = \frac{(27\times2)+(28\times5)+(31\times3)+(33\times1)+(34\times4)}{2+5+3+1+4} \\ \\ = \frac{54+140+93+33+136}{15} = \frac{456}{15} =30.4[/tex]

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