Data Analysis - 25 Questions
Practice worksheet with interactive questions
A bar graph shows: Apples-20, Bananas-30, Oranges-15. Which fruit has the most?
Find the mean of: 10, 15, 20, 25. ___
Add all numbers and divide by how many there are
What is the median of: 3, 7, 9, 12, 15?
The mode is the most frequently occurring value in a data set.
What is the range of: 5, 12, 8, 20, 15? ___
Subtract smallest from largest
Test scores: 75, 80, 85, 90. What's the mean score?
Add all scores and divide by 4
What is the mode of: 4, 5, 5, 6, 7, 5, 8?
On a line graph, if the line goes up, values are ___.
Getting bigger or smaller?
Bar graphs are best for showing change over time.
Sales: Mon-50, Tue-60, Wed-70, Thu-80. What's the pattern?
Look at the difference between consecutive days
What is the median of: 2, 4, 6, 8?
Data: 15, 20, 25, 30. What's the range? ___
Maximum minus minimum
A pie chart shows 50% like pizza, 30% like burgers, 20% like tacos. If 100 students surveyed, how many like pizza?
Find 50% of 100
The mean can be affected by extreme values (outliers).
Heights: 150 cm, 155 cm, 160 cm, 165 cm. What's the mean?
What is the mode of: 10, 12, 14, 16, 18? ___
Do any numbers repeat?
Temperature: Day 1-60°, Day 2-65°, Day 3-70°. Predict Day 4.
Look at how much it increases each day
What should every graph have?
Pie charts show parts of a whole.
Scores: 80, 85, 90, 95, 100. What's the median?
Find the middle number
Data: 5, 10, 15, 20, 25. What's the mean? ___
Add and divide by 5
A line graph shows a flat line. What does this mean?
Survey: 40 like dogs, 30 like cats, 20 like birds, 10 like fish. What's the total?
Add all the categories
Line graphs are good for showing continuous change over time.
Data: 12, 18, 24, 30, 36. What's the range? ___
Largest minus smallest
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