The times taken by 50 students to complete their maths homework are shown in the table. TIME, m (MINUTES) FREQUENCY 10 < m s 15 15 < ms 20 20 < m s 25 25 < m s 30 30 < m s 35 11 12 12 35 < m s 40 a. Draw a cumulative frequency diagram. 12 /8 b. Estimate the median time taken. c. Estimate the lower quartile of the time taken. d. Estimate the upper quartile. e. Use your answers to parts c and d to work out an estimate for the inter-quartile range.
The times taken by 50 students to complete their maths homework are shown in the table. TIME, m (MINUTES) FREQUENCY 10 < m s 15 15 < ms 20 20 < m s 25 25 < m s 30 30 < m s 35 11 12 12 35 < m s 40 a. Draw a cumulative frequency diagram. 12 /8 b. Estimate the median time taken. c. Estimate the lower quartile of the time taken. d. Estimate the upper quartile. e. Use your answers to parts c and d to work out an estimate for the inter-quartile range.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:The times taken by 50 students to complete their maths homework are shown in the table.
TIME, m (MINUTES)
FREQUENCY
10 < m s 15
15 < ms 20
20 < m s 25
25 < m s 30
30 < m s 35
11
12
12
35 < m s 40
a. Draw a cumulative frequency diagram.
12 /8
b. Estimate the median time taken.
c. Estimate the lower quartile of the time taken.
d. Estimate the upper quartile.
e. Use your answers to parts c and d to work out an estimate for the inter-quartile range.
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