Practice Median Of Grouped Data (13.4) - Statistics

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9 questions

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6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define the term 'cumulative frequency'.
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Think about how we sum frequencies.
Question 2.
What is the median of a data set with odd numbers?
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Arrange the numbers in order first.
3Question 3.
What does the median represent in a dataset?
- Averages all numbers
- Is the middle value
- Represents the maximum value
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Consider what the median aims to reflect.
4Question 4.
True or False: The median is less affected by extreme values compared to the mean.
- True
- False
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Think about the characteristics of how median is derived.
Question 5.
Given a grouped data set for test scores in a class: '60-70: 10, 70-80: 15, 80-90: 20, 90-100: 5'. Calculate the median score.
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Identify the median class carefully; use the cumulative frequencies.
Question 6.
A frequency table lists car sales by ranges. If the class intervals are: '0-10: 2, 10-20: 4, 20-30: 6, 30-40: 8', find the median range.
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You have to calculate the cumulative frequencies first, and then locate the median class.

5 more questions in this section. Enroll free to practise them all.