Find the mean of the data set $$ 70.59,91.47,72.26,57.91 $$, and 56.69 . Blank 1:

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To find the mean of the data set $$ 70.59, 91.47, 72.26, 57.91, 56.69 $$, we follow these steps:

1. **Sum all the values** in the data set.
2. **Divide the sum** by the number of values in the data set.

Let's calculate the sum first:

$$
\text{Sum} = 70.59 + 91.47 + 72.26 + 57.91 + 56.69
$$

Now, I will calculate the sum.
Calculate the value by following steps:
- step0: Calculate:
  $$70.59+91.47+72.26+57.91+56.69$$
- step1: Add the numbers:
  $$348.92$$
The sum of the values is $$ 348.92 $$.

Next, we divide this sum by the number of values in the data set. There are 5 values.

$$
\text{Mean} = \frac{348.92}{5}
$$

Now, I will calculate the mean.
Calculate the value by following steps:
- step0: Calculate:
  $$\frac{348.92}{5}$$
- step1: Convert the expressions:
  $$\frac{\frac{8723}{25}}{5}$$
- step2: Multiply by the reciprocal:
  $$\frac{8723}{25}\times \frac{1}{5}$$
- step3: Multiply the fractions:
  $$\frac{8723}{25\times 5}$$
- step4: Multiply:
  $$\frac{8723}{125}$$
The mean of the data set is $$ 69.784 $$.

So, for Blank 1, the answer is $$ 69.784 $$.
The mean of the data set is 69.784.

Find the mean of the data set , and 56.69 .
Blank 1:

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Find the mean of the data set , and 56.69 . Blank 1: