Question

22) In the following histogram,a. What is the frequency of the 58 - 60 class?b. How many data points are represented in thehistogramc. What is the mean of the data in the histogram?

Answer 1

Given:

A histogram representing the data is given.

Find:

we have to find some questions.

Step-by-step explanation:

(a) The frequency of the class 58-60 is 4.

(b) Total seven data points are represented in the Histogram.

(c)the mean of the data in the histogram is

The mid point of the classes are 49,51,53,55,57,59,61.

and frequencies corresponding to the above classes are 5,7,8,6,7,4,3.

`\begin{gathered} Mean=(\sum_^fm)/(\sum_^f) \\ =((49*5)+(51*7)+(53*8)+(55*6)+(57*7)+(59*4)+(61*3))/(5+7+8+6+7+4+3) \\ =(2174)/(40)=54.35 \end{gathered}`

Therefore the mean is 54.35