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The heights (in meters) of five adults are listed below. Calculate the mean height of these adults.

1.57, 1.65, 1.73, 1.75, 1.78

A) 1.70 meters
B) 1.71 meters
C) 1.73 meters
D) 1.72 meters

Answer :

To find the mean height of the five adults, you need to follow these steps:

1. Add all the heights together.
- First height: 1.57 meters
- Second height: 1.65 meters
- Third height: 1.73 meters
- Fourth height: 1.75 meters
- Fifth height: 1.78 meters

Total sum of heights = 1.57 + 1.65 + 1.73 + 1.75 + 1.78 = 8.48 meters

2. Count the number of heights.
There are 5 heights.

3. Divide the total sum by the number of heights to find the mean.

Mean height = Total sum of heights / Number of heights
Mean height = 8.48 / 5 = 1.696 meters

Given the choices, the closest option to 1.696 meters is:
A) 1.70 meters

Thus, the mean height of these adults is approximately 1.70 meters.

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Rewritten by : Jeany

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