Find the mean and modal life of condensers.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 13PT
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Question
In a certain investigation, 460 persons were involved in the study, and based on an enquiry on their
it was known that 75% of them were 22 or more years. The following frequency distribution shows the
age composition of the persons under study. Find the mean and modal life of condensers.
age,
Mid age in years
13
18
23
28
| 33
38
43
48
No. of persons
24
fi
90
122
f2
56
20
33
Transcribed Image Text:In a certain investigation, 460 persons were involved in the study, and based on an enquiry on their it was known that 75% of them were 22 or more years. The following frequency distribution shows the age composition of the persons under study. Find the mean and modal life of condensers. age, Mid age in years 13 18 23 28 | 33 38 43 48 No. of persons 24 fi 90 122 f2 56 20 33
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