Question

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the following table shows the number of alligators in each body of water near toms house.
body of water number of alligators
bite swamp 7
chomp lake 0
danger river 11
reptile creek 10
find the mean number of alligators.
alligators
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Explanation:

Step1: Calculate sum of alligators

$7 + 0+11 + 10=28$

Step2: Calculate number of data - points

There are 4 bodies of water, so $n = 4$.

Step3: Calculate the mean

The formula for the mean $\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}$. Substituting the sum of alligators ($\sum_{i=1}^{n}x_{i}=28$) and $n = 4$ into the formula, we get $\bar{x}=\frac{28}{4}=7$.

Answer:

7