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Worksheetschapter 6 work sheet
Total questions: 20
Worksheet time: 16mins
In an effort to try to convince her mother that she is too old to join the intermediate swim class, Mira, who is 13 years old, gathers data on the ages of a random sample of members of the current intermediate swim class. The results of the data collected by Mira are displayed in the dot plot shown.
It is likely that she will be able to convince her mother. Mira's age is within the area where the data are clustered.
It is likely that she will be able to convince her mother. Mira's age is to the left of the area where the data are clustered.
It is unlikely that she will be able to convince her mother. Mira's age is within the area where the data are clustered.
It is unlikely that she will be able to convince her mother. Mira's age is to the left of the area where the data are clustered.
Calculate the mean.
29
29.5
28.5
33
Calculate the mean.
25
24
27
24.5
Sonya randomly surveys 26 seventh graders to gather data about the amount of time spent each week using the Internet. Sonya records the data in the dot plot shown. What is the median of the data set?
7
7.5
8
7.25
What inference can you draw by comparing the interquartile ranges?
There is more variability in the number of days that Team A members trained because the IQR for Team A is greater than the IQR for Team B.
There is more variability in the number of days that Team B members trained because the IQR for Team B is greater than the IQR for Team A.
Team A members generally trained for more days than Team B members
Team B members generally trained for more days than Team A members
