Question

Find the Mean of the data set.
20, 30, 32, 16, 31, 32, 13, 20, 28, 32, 15, 18, 20, 21, 32,

21
22.5
24

Answer 1

To find the mean of the data set, you need to follow these steps:

1. Add all the numbers together.
2. Divide the sum by the total number of values in the dataset.

Let's calculate the mean for the provided data set:

Data Set: 20, 30, 32, 16, 31, 32, 13, 20, 28, 32, 15, 18, 20, 21, 32

**Step 1: Calculate the Sum**

Sum = 20 + 30 + 32 + 16 + 31 + 32 + 13 + 20 + 28 + 32 + 15 + 18 + 20 + 21 + 32
Sum = 20 + 30 = 50
Sum = 50 + 32 = 82
Sum = 82 + 16 = 98
Sum = 98 + 31 = 129
Sum = 129 + 32 = 161
Sum = 161 + 13 = 174
Sum = 174 + 20 = 194
Sum = 194 + 28 = 222
Sum = 222 + 32 = 254
Sum = 254 + 15 = 269
Sum = 269 + 18 = 287
Sum = 287 + 20 = 307
Sum = 307 + 21 = 328
Sum = 328 + 32 = 360

**Step 2: Count the Total Number of Values**

There are 15 values in the dataset.

**Step 3: Calculate the Mean**

Mean = Sum / Total Number of Values
Mean = 360 / 15
Mean = 24

So, the mean of the data set is **24**.