The histogram shows the finishing times of the runners in a 10km cross-country race. 10km cross-country times 12- 10- 8- 6- 4- 2- o 30 40 50 60 70 80 90 Time (mins) a How many runners were in the race? b There was a target time of 67 minutes. How many runners failed to meet the target time? c i Create a grouped frequency table using the information in the histogram. ii Use your table to calculate an estimate of the mean time. Frequency density
The histogram shows the finishing times of the runners in a 10km cross-country race. 10km cross-country times 12- 10- 8- 6- 4- 2- o 30 40 50 60 70 80 90 Time (mins) a How many runners were in the race? b There was a target time of 67 minutes. How many runners failed to meet the target time? c i Create a grouped frequency table using the information in the histogram. ii Use your table to calculate an estimate of the mean time. Frequency density
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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
Transcribed Image Text:3.
The histogram shows the finishing times of the runners in a 10km cross-country race.
10km cross-country times
12-
10-
8-
6-
2-
O 30
40
50
60
70
80
90
Time (mins)
a How many runners were in the race?
b There was a target time of 67 minutes. How many runners failed to meet the target time?
c i Create a grouped frequency table using the information in the histogram.
ii Use your table to calculate an estimate of the mean time.
Frequency density
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