4 years ago

PLEASE HELP. DO IT CORRECTLY PLEASEE.

Mathematics

1 answer:

iogann1982 [59]4 years ago

7 0

Initial price = $ 80

He save $ 20

Discount % = Saving/Original price x 100%
= 20/80 x 100% = 25 %

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Solution:

1. Rome

Minimum=0

Maximum=16

$Q_{1}=3, Q_{3}=13, {\text{IQR}=Q_{3}-Q_{1}=13-3=10,$

Median , $Q_{2}=8.5$

Mean = 8

Standard Deviation(σ)=5.4

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2. New York

Minimum=1

Maximum=20

$Q_{1}=4.5, Q_{3}=6, {\text{IQR}=Q_{3}-Q_{1}=6-4.5=1.5,$

Median , $Q_{2}=5.5$

Mean = 7.25

Standard Deviation(σ)=6.1

As, for New york , Mean is not the mid value, that is difference between Mean and Minimum is not same as Maximum and Mean.

As, you can see , the three Quartiles , $Q_{1},Q_{2},Q_{3}$ are very close to each other, it means , other data values are quite apart from each other. So, Mean will not appropriately describe the given data.So, in this case Median will suitable to find the center.