The spread of data set x is greater than the spread of data set y, and the data sets are normally distributed. which statement is true? the mean of data set x is greater than the mean of data set y. the median of data set x is less than the median of data set y. the standard deviation of data set x is greater than the standard deviation of data set y. the range of data set x is less than the range of data set y. the mode of data set x is greater than the mode of data set y. nextreset

Answer;

-The Standard Deviation of data set X is greater than the than the standard deviation of data set Y.

Explanation;

-The data of set X has a greater spread than that of set Y. This only means that the Standard Deviation of data set X is greater than the than the standard deviation of data set Y.

-The variance and the standard deviation are measures of the spread of the data around the mean. They summarize how close each observed data value is to the mean value.

-In sets of data with a small spread, all values are very close to the mean, resulting in a small variance and standard deviation. While, if the set of data is more dispersed, values are spread further away from the mean, leading to a larger variance and standard deviation.

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

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