All HiSET: Math Resources
Example Questions
Example Question #1 :Data Analysis, Probability, And Statistics
Researchers performed a survey of the populations of several small islands. The data is represented by the following histogram.
多少百分比的岛屿有种群调查on of less than 140?
Possible Answers:
65%
35%
30%
55%
0%
Correct answer:
65%
Explanation:
On the horizontal axis of a histogram, you have labels representing ranges of values. For example, the label "140–159" represents the range of islands with populations between 140 and 159.
The question asks for the percent of islands with populations under 140. The ranges that are smaller than 140 are the "120–139" range and the "100–119" range. Match the bars of each with the percents on the vertical (y) axis. The percents corresponding to these ranges are 35% and 30%, respectively.
Adding both of these percents yields the answer, 65%.
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All HiSET: Math Resources
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