Medians

T is the centroid, if TL=5, VL=?

• 10

• 15

• 2.5

• 5

When you draw the medians of a triangle it creates the point of concurrency called the _____________.

• Centroid

• Incenter

• Perpendicular Bisectors

• Altitude

Ms. Sajewski surveyed her students on the number of book they read last summer. Which is NOT true?

• The mode number of books read is one

• The median number of books read is 1.5

• Ms. Sajewski surveyed 20 students

• The mean number of books read is 3.25

The graph compares Homework Time versus TV Time for a group of high school students.What is the interquartile range of homework time?

• 40 minutes

• 190 minutes

• 28 minutes

• 12 minutes

CF, BE, and AD are the medians of the triangle. If BF =10, find AF.

• 20

• 10

• 5

• Not Enough Information

The graph compares Homework Time versus TV Time for a group of high school students. Which statement is NOT true?

• The median for TV Time is the same as the 3rd quartile for Homework Time

• The median minutes for Homework Time is 12 less than the median minutes for TV Time

• 75% of those surveyed watched TV for at least 15 minutes

• 1/4 of students spent at least 20 minutes on homework

Sama tracked the hours of sleep that she got over the course of a week: 10, 9, 7, 9, 9, 7, 6    Which is a reasonable prediction of the mean number of hours of sleep that Sama gets in a night?

• 7

• 8

• 9

• 10

The box-and-whisker plot compares test scores between 1st Period and 2nd Period.  Which statement is NOT true?

• The median for 1st Period is the same as the 1st quartile for 2nd Period

• The range of 1st Period is greater than the range of 2nd Period

• 75% of students in 2nd Period scored 80 or better

• 75% of students in 1st Period scored a 75 or less

Which class has the higher test score median? 

• Class #1

• Class # 2 

• The medians are equal

• The median is not shown here. 

What is the median of the set of data?

• 4

• 5

• 6

• 7