Question

miguel needs to find the center and the spread of the data set shown on the dot plot. the dot plot has 20 dots. there will be 10 dots to the left of the center and dots to the right of the center. the center of the data set is the spread of data is from at 20 x between 15 and 20 between 20 and 25 at 30

Explanation:

Step1: Determine number of dots on right

Since there are 20 dots in total and 10 dots to the left of the center, there must be 10 dots to the right of the center.

Step2: Find center of data - set

For a data - set with 20 data points (an even number of data points), the median (center) is the average of the 10th and 11th ordered data points. Counting the dots from left - to - right, the 10th and 11th dots fall in the value range between 15 and 20.

Step3: Find spread of data

The spread of the data is from the smallest value to the largest value. The smallest value is 5 and the largest value is 30.

Answer:

There will be 10 dots to the right of the center. The center of the data set is between 15 and 20. The spread of data is from 5 to 30.