Grade 8 Data Comparison Worksheet
A worksheet for Grade 8 students focusing on comparing and interpreting data from various graphs and data sets.
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Grade 8 Data Comparison Worksheet
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work where applicable.
The bar graph below shows the favorite colors of students in two different classes, Class A and Class B.
1. Which color is equally popular in both Class A and Class B?
2. In which class is 'Purple' more popular?
Consider the following two data sets representing test scores:
Data Set 1: 75, 80, 85, 90, 95
Data Set 2: 60, 70, 85, 100, 105
3. The mean of Data Set 1 is . (Answer: 85)
4. The mean of Data Set 2 is . (Answer: 84)
5. The range of Data Set 1 is . (Answer: 20)
6. The range of Data Set 2 is . (Answer: 45)
7. Which measure of central tendency is most affected by outliers?
Median
Mean
Mode
Range
8. If two data sets have the same mean but different standard deviations, what does this imply?
The data sets are identical.
The data sets have different spreads.
The data sets have different medians.
The data sets have different modes.
9. Explain how comparing the interquartile range (IQR) of two data sets can provide insight into their variability.
10. A larger standard deviation indicates that the data points are generally closer to the mean.
True
False
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