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Exercise 22.4 1 The table gives information about the number of words in 40 sentences in a book. Number of words 1-5 6-10 11-15 16-20 Frequency 5 9 19 7 (a) State the modal class interval. (b) Find an estimate of the mean. (c) Draw a cumulative frequency graph to estimate the median, the lower and upper quartiles and the interquartile range.

Exercise 22.4 1 The table gives information about the number of words in 40 sentences in a book. Number of words 1-5 6-10 11-15 16-20 Frequency 5 9 19 7 (a) State the modal class interval. (b) Find an estimate of the mean. (c) Draw a cumulative frequency graph to estimate the median, the lower and upper quartiles and the interquartile range.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 26PFA
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22.4

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0 Exercise 22.4 1 The table gives information about the number of words in 40 sentences in a book. Number of words 1-5 6-10 11-15 16-20 Frequency 5 9 19 7 (a) State the modal class interval. (b) Find an estimate of the mean. (c) Draw a cumulative frequency graph to estimate the median, the lower and upper quartiles and the interquartile range. Hugh. Mathematics - A Complete Introduction: Teach Yourself, Hodder & Stoughton, 2013. ProQuest Ebook Central, http://ebookcentral.proquest.com/lib/arden/detail.action?docID=1719478. ed from arden on 2021-09-07 03:34:38. 2 The table gives information about the weights, in kilograms, of 100 men. Weight (w kg) 60 ≤w < 70 70 ≤w < 80 80 ≤w < 90 90 ≤w< 100 100 ≤w< 110 (a) State the modal class interval. (b) Find an estimate of the mean. Frequency 8 14 23 39 16 (c) From a cumulative frequency graph, estimate the median, the lower and upper quartiles and the interquartile range. (d) How many men weighed more than 76 kg?
Transcribed Image Text:0 Exercise 22.4 1 The table gives information about the number of words in 40 sentences in a book. Number of words 1-5 6-10 11-15 16-20 Frequency 5 9 19 7 (a) State the modal class interval. (b) Find an estimate of the mean. (c) Draw a cumulative frequency graph to estimate the median, the lower and upper quartiles and the interquartile range. Hugh. Mathematics - A Complete Introduction: Teach Yourself, Hodder & Stoughton, 2013. ProQuest Ebook Central, http://ebookcentral.proquest.com/lib/arden/detail.action?docID=1719478. ed from arden on 2021-09-07 03:34:38. 2 The table gives information about the weights, in kilograms, of 100 men. Weight (w kg) 60 ≤w < 70 70 ≤w < 80 80 ≤w < 90 90 ≤w< 100 100 ≤w< 110 (a) State the modal class interval. (b) Find an estimate of the mean. Frequency 8 14 23 39 16 (c) From a cumulative frequency graph, estimate the median, the lower and upper quartiles and the interquartile range. (d) How many men weighed more than 76 kg?
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