The sixth graders at Kilmer Middle School can choose to participate in one of the four music activities offered. The number of students participating in each activity is shown in the bar graph below. Use the information shown to respond to the following:

How many sixth grade girls participate in a music activity at the school?

The sixth graders at Kilmer Middle School can choose to participate in one of the four music activities offered. The number of students participating in each activity is shown in the bar graph below. Use the information shown to respond to the following:

Which group has the greatest number of sixth grade members?

What is the range of the following set of data?

{ 6, 2, -5, 14, 6, -7, 8, 10, 9, 6, -5 }