Interpreting results

Using statistics

Name: ______________________________Date: ______________Score: ______ / 20

1.
Work out the range of 2, 24, 29.
2.
Work out the mode of 6, 6, 19, 23.
3.
Which average depends on EVERY value in the set?
1. Athe mean
2. Bthe mode
3. Cthe median
4.
Team A has a range in ages of 12 years and Team B has a range of 34 years. Which team varies more?
1. ATeam B
2. BTeam A
3. Cthey vary the same
5.
Work out the median of 5, 14, 29, 35.
6.
Match each statistic to what it means.
Write the letter of the matching item in each box:
?mode
?median
?range
Athe most common value
Bthe middle value in order
Clargest minus smallest
7.
Put these steps for finding a median into order.
Write the order (first step to last) in the boxes:
- ?Read off the middle value
- ?Put the values in order of increasing size
- ?Count how many values there are
8.
Work out the mean of 11, 13, 15, 17, 19, 21.
9.
4 numbers have a mean of 18. What is their total?
10.
If a football team's ages are mostly around 21 but two players are over 40, the mean will be higher than the median.
True False
11.
Work out the mean of 4, 6, 8, 10.
12.
Team A has a range in ages of 14 years and Team B has a range of 21 years. Which team varies more?
1. ATeam A
2. Bthey vary the same
3. CTeam B
13.
If a football team's ages are mostly around 15 but two players are over 40, the mean will be higher than the median.
True False
14.
Work out the mean of 2, 4, 6, 8, 10, 12.
15.
Team A has a range in ages of 13 years and Team B has a range of 31 years. Which team varies more?
1. ATeam B
2. BTeam A
3. Cthey vary the same
16.
If a football team's ages are mostly around 17 but two players are over 40, the mean will be higher than the median.
True False
17.
Work out the median of 5, 13, 26, 34, 56.
18.
Team A has a range in ages of 11 years and Team B has a range of 25 years. Which team varies more?
1. ATeam A
2. BTeam B
3. Cthey vary the same
19.
Work out the median of 6, 14, 30, 32.
20.
Work out the median of 7, 13, 25, 37, 60.

Answer key

Interpreting results — Using statistics

1.27
2.6
3.A. the mean
4.A. Team B
5.21.5
6.mode → the most common value; median → the middle value in order; range → largest minus smallest
7.Put the values in order of increasing size, Count how many values there are, Read off the middle value
8.16
9.72
10.True
11.7
12.C. Team B
13.True
14.7
15.A. Team B
16.True
17.26
18.B. Team B
19.22
20.25