Grade 6 Practice

Data and Statistics

Interpret data displays and calculate center and variability. A dot represents one observation. For quartiles, find the medians of the lower and upper halves.

Practice Questions

10 questions

1
Find the mean of 4, 6, 8, and 10.
2
Find the median of 3, 5, 7, 9, and 12.
3
Find the median of 2, 4, 8, and 10.
4
Find the range of 5, 8, 12, 15, and 20.
5
A dot plot shows 1: ••, 2: •••, 3: •. How many observations are shown?
6
A histogram shows frequencies 0–9: 3, 10–19: 5, 20–29: 2. How many observations are at least 10?
7
A box plot has minimum 2, Q1 4, median 7, Q3 10, maximum 14. Find the interquartile range.
8
For a box plot of 1, 3, 5, 7, 9, 11, 13, 15, what is Q1?
9
Find the mean absolute deviation of 2, 4, 6, and 8.
10
Which question is statistical? Enter A for How tall is Sam? or B for How tall are the students in our class?

Complete the questions, then check your answers.