Question

Mrs. Summers polled the students in her 7th and 8th grade classes to determine the number of pets each student has at home. The results for both classes are shown in the dot plots below. Calculate the mean and mean absolute deviation of each sample. Then, complete the following question.

The mean number of pets for the 8th grade class is about 1.4 pets____ than the mean number of pets for the 7th grade class. This difference is about____ the mean absolute deviation of either group.

A. higher, lower?
B. same as, twice, half?

Answer 1

Answer: A

Step-by-step explanation: mean in math terms mean everything added together on a graph we now have an 8th grade class and a 7th grade class the 7th-grade class has 67 pets 6+14+15+16+10+6=67 and the 8th-grade class has 121 pets 3+8+21+36+35+18=121 so it would be A.

the mean number of pets for the 8th-grade class is about 1.4 pets higher than the mean number of pets for the 7th grade class. This different is about lower the mean absolute deviation of either group.

P.S. pay attention in math claass kids