wo brands of tyres are tested with the following results: Life (in ‘000 miles) Number of Tyres of brand X Y 20-25 1 0 25-30 22 24 30-35 64 76 35-40 10 0 40-45 3 0 a) Which brand of tyres have greater average life? b) Compare the coefficient of variation and state which brand of tyres would you use on your fleet of trucks?
wo brands of tyres are tested with the following results: Life (in ‘000 miles) Number of Tyres of brand X Y 20-25 1 0 25-30 22 24 30-35 64 76 35-40 10 0 40-45 3 0 a) Which brand of tyres have greater average life? b) Compare the coefficient of variation and state which brand of tyres would you use on your fleet of trucks?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 3CYU
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Question
Two brands of tyres are tested with the following results:
Life (in ‘000 miles) Number of Tyres of brand
X Y
20-25 1 0
25-30 22 24
30-35 64 76
35-40 10 0
40-45 3 0
a) Which brand of tyres have greater average life?
b) Compare the coefficient of variation and state which brand of tyres would you use on your fleet
of trucks?
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