1 The table shows the average times, in minutes, that 100 people waited for a train. Time (x minutes) Frequency a 4≤x≤6 b c 8≤x<10 10≤x< 12 12 ≤x≤14 Construct a cumulative frequency table for this data. 19 8 3 Sketch the cumulative frequency curve. Use your graph to find estimates for the median and interquartile range. d Find the 10th percentile. The train company will refund the lare il customers have to wait 11 minutes or more for a train. e Determine how many customers can claim for a refund of their fare.
1 The table shows the average times, in minutes, that 100 people waited for a train. Time (x minutes) Frequency a 4≤x≤6 b c 8≤x<10 10≤x< 12 12 ≤x≤14 Construct a cumulative frequency table for this data. 19 8 3 Sketch the cumulative frequency curve. Use your graph to find estimates for the median and interquartile range. d Find the 10th percentile. The train company will refund the lare il customers have to wait 11 minutes or more for a train. e Determine how many customers can claim for a refund of their fare.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question

Transcribed Image Text:Exercise 3G
1 The table shows the average times, in
minutes, that 100 people waited for a train.
Frequency
Time (x minutes)
0<x<2
4≤x≤6
8≤x≤10
10<x< 12
12<x< 14
11
31
a
Construct a cumulative frequency table
for this data.
b
Sketch the cumulative frequency curve.
Use your graph to find estimates for the
median and interquartile range.
d Find the 10th percentile.
The train company will refund the lare il
customers have to wait 11 minutes or more
for a train.
Determine how many customers can
claim for a refund of their fare.
2 Nuria recorded the number of words in a
sentence in one chapter of her favourite
book. The results are shown in the table.
3
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