Question

20. MP MODELING REAL LIFE The dot plot shows the lengths of earthworms.

.:
:
15 16 17 18 19 20 21 22 23 24 25 26 27 28
Length
a. Find and interpret the number of data values on the dot plot.
b. How can you collect these data? What are the units?
c. Write a statistical question that you can answer using the
dot plot. Then answer the question. PLS HELP

Answer 1

a. The number of data values on the dot plot can be counted by adding up the frequency of each dot. From the given dot plot, it appears that there are 13 data values.

b. To collect this data, you could go outside and collect earthworms from the ground. The unit of measurement for the data would be centimeters or inches, depending on the measurement system used.

c. Statistical question: What is the range of the lengths of the earthworms in the sample?

Answer: The range of the lengths of the earthworms in the sample can be found by subtracting the smallest value from the largest value. From the given dot plot, it appears that the smallest value is 15 and the largest value is 28. Therefore, the range of the lengths of the earthworms is:

Range = 28 - 15 = 13

The range of the lengths of the earthworms in the sample is 13.