a.
To find: The matrix for the given data.
a.
Answer to Problem 21PPS
The matrix for the given datais
Explanation of Solution
Given information:
The data is shown below.
Brand | Cost | Comfort | Look | Longevity |
A | 3 | 2 | 2 | 1 |
B | 4 | 3 | 2 | 3 |
C | 5 | 5 | 4 | 4 |
D | 1 | 5 | 5 | 2 |
Calculation:
The data in form of matrix is,
b.
To find:Which shoe to buy.
b.
Answer to Problem 21PPS
The shoe which is to buy is C.
Explanation of Solution
Given information:
The data is shown below.
Brand | Cost | Comfort | Look | Longevity |
A | 3 | 2 | 2 | 1 |
B | 4 | 3 | 2 | 3 |
C | 5 | 5 | 4 | 4 |
D | 1 | 5 | 5 | 2 |
Calculation:
The shoe of brand C is best to buy since, it was given the highest rating possible for cost and comfort and a high rating for looks and will last a fairly long time.
c.
To find:Whether the sum of column and row provide some useful information or not.
c.
Answer to Problem 21PPS
The sum of row provide some useful information to compare the data.
Explanation of Solution
Given information:
The data is shown below.
Brand | Cost | Comfort | Look | Longevity |
A | 3 | 2 | 2 | 1 |
B | 4 | 3 | 2 | 3 |
C | 5 | 5 | 4 | 4 |
D | 1 | 5 | 5 | 2 |
Calculation:
Yes finding the sum of row and then calculating the average will provide an easy way to compare the data.
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Algebra 2
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