Question

The frequency distribution below represents frequencies of actual low temperatures recorded during the course of a​ 31-day month. Use the frequency distribution to construct a histogram. Do the data appear to have a distribution that is approximately​ normal?

Answer 1

See Explanation

Explanation:

Given

`\begin{array}{cc}{Class} & {Frequency} & A\ 39-44 & 1 & B\ 45-50 & 3 & C\ 51-56 & 8 & D\ 57-62 & 6 & E\ 63-68 & 8 & F\ 69-74 & 3 & G\ 75-80 &2 \ \end{array}`

Solving (a): The histogram

To do this, we simply plot each data on each class on the x-axis and the frequency on the y-axis.

(See attachment for histogram)

Solving (b): The type of distribution

The histogram appears to have a bell shape. This means that the distribution is approximately normal.