Statistics Review
HW – Intro to Statistics
Name __________________________
The number of shots made from 50 free throws for 18 players are counted.
12 32 42 50 39 38 27 34 42 35 48 36 13 15 23 16 25 43
1. Find the: Mean… Median… Mode…. Range… for this set of data.
Mean (µ): __________
Mode: ___________
Median: _________
Range: ___________
2. Make a Frequency chart with the data
# of throws Tally
11-20
21-30
31-40
41-50
3. Use the information from the chart to make a
(don’t forget to label the axes!)
Example of
histogram.
histogram
4. If the standard deviation (σ) for the data above is 12, what is the z-score for 48 throws?
z
x

5. What data point would have a z-score of -2?
z
x

6. What does a negative z-score tell you?