(i) What is the modal age group? (ii) How many people took part in the survey? (iii) Find an estimate for the mean age that a person first met their partner.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 10CT
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A random sample of people were asked how old they were when they first
met their partner. The histogram represents this information.
8
7
6
5
1
10
20
30
40
50
60
70
80
90
100
age (years)
A Figure 2.14
(i)
What is the modal age group?
(ii) How many people took part in the survey?
(iii) Find an estimate for the mean age that a person first met their partner.
(iv) Draw a cumulative frequency graph for the data and use the graph to
provide an estimate for the median.
frequency density (people per year)
Transcribed Image Text:A random sample of people were asked how old they were when they first met their partner. The histogram represents this information. 8 7 6 5 1 10 20 30 40 50 60 70 80 90 100 age (years) A Figure 2.14 (i) What is the modal age group? (ii) How many people took part in the survey? (iii) Find an estimate for the mean age that a person first met their partner. (iv) Draw a cumulative frequency graph for the data and use the graph to provide an estimate for the median. frequency density (people per year)
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