Pupils were asked how long it took them to walk to school on a particular morning. A
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Question:
Pupils were asked how long it took them to walk to school on a particular morning. A cumulative frequency distribution was formed.
Time taken (minutes) | <5 | <10 | <15 | <20 | <25 | <30 | <35 | <40 | <45 |
Cum. Frequency | 28 | 45 | 81 | 143 | 280 | 349 | 374 | 395 | 400 |
Draw a cumulative frequency curve and estimate how many pupils took less than 18minutes.
6% of the pupils took x minutes or longer. Find x.
Construct the frequency distribution and draw histogram
Related Book For
Discovering Advanced Algebra An Investigative Approach
ISBN: 978-1559539845
1st edition
Authors: Jerald Murdock, Ellen Kamischke, Eric Kamischke
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