Answer:
69.6 inches
Step-by-step explanation:
The mean height from a frequency table is given by
[tex] \bar x = \frac{ \sum \: fx}{ \sum \: f} [/tex]
We need to multiply the frequencies by the weight and sum them up to get:
5×64+2×65+5×66+1×69+3×72+2×75+5×77=1600
The total frequency is 23.
We substitute into the formula to get:
[tex] \bar x = \frac{1600}{23} [/tex]
[tex] \bar x = 69.57[/tex]
The mean height to the nearest tenth is 69.6 inches
