The heights in cm, of 10 children are 145, 163, 159, 162, 167, 149, 150, 160, 170, and 155. The mean height of the children is
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Correct Answer: Option B
Explanation:
To calculate the mean height of the 10 children, follow these steps:
1. Sum of the Heights:
Add all the heights together:
\[
145 + 163 + 159 + 162 + 167 + 149 + 150 + 160 + 170 + 155
\]
\[
= 1,580
\]
2. Calculate the Mean:
Divide the total sum by the number of children:
\[
\text{Mean} = \frac{\text{Sum of Heights}}{\text{Number of Children}}
\]
\[
\text{Mean} = \frac{1,580}{10} = 158
\]
The mean height of the children is 158 cm.
The correct answer is B. 158 cm.
To calculate the mean height of the 10 children, follow these steps:
1. Sum of the Heights:
Add all the heights together:
\[
145 + 163 + 159 + 162 + 167 + 149 + 150 + 160 + 170 + 155
\]
\[
= 1,580
\]
2. Calculate the Mean:
Divide the total sum by the number of children:
\[
\text{Mean} = \frac{\text{Sum of Heights}}{\text{Number of Children}}
\]
\[
\text{Mean} = \frac{1,580}{10} = 158
\]
The mean height of the children is 158 cm.
The correct answer is B. 158 cm.