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Question 5 The cumulative frequency ogive below shows the time taken, to the nearest minute, for group of runners to complete a race. 60 40 50 60 70 80 90 30 Time taken in minutes 10 20 40 Use the ogive above to find: a) The number of runners who took part in the race. b) An estimate of the percentage of runners who completed the race in more thar one hour. c) An estimate of the median time and the upper and lower quartiles. Cumulative frequency 20

Question 5 The cumulative frequency ogive below shows the time taken, to the nearest minute, for group of runners to complete a race. 60 40 50 60 70 80 90 30 Time taken in minutes 10 20 40 Use the ogive above to find: a) The number of runners who took part in the race. b) An estimate of the percentage of runners who completed the race in more thar one hour. c) An estimate of the median time and the upper and lower quartiles. Cumulative frequency 20

Mathematics For Machine Technology
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 20A: Mating parts are shown in Figure 29-16. The pins in the top piece fit into the holes in the bottom...
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Question 5 The cumulative frequency ogive below shows the time taken, to the nearest minute, for a group of runners to complete a race. 60 40 20 10 20 30 40 50 60 70 80 90 Time taken in minutes Use the ogive above to find: a) The number of runners who took part in the race. b) An estimate of the percentage of runners who completed the race in more than one hour. c) An estimate of the median time and the upper and lower quartiles. You are given the following additional information; minimum time 29 minutes maximum time = 82 minutes d) Draw a fully labelled box-plot to represent the distribution of race times. Cumulative frequency
Transcribed Image Text:Question 5 The cumulative frequency ogive below shows the time taken, to the nearest minute, for a group of runners to complete a race. 60 40 20 10 20 30 40 50 60 70 80 90 Time taken in minutes Use the ogive above to find: a) The number of runners who took part in the race. b) An estimate of the percentage of runners who completed the race in more than one hour. c) An estimate of the median time and the upper and lower quartiles. You are given the following additional information; minimum time 29 minutes maximum time = 82 minutes d) Draw a fully labelled box-plot to represent the distribution of race times. Cumulative frequency
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