Question

Please help me 30 points for both questions.

The average high temperatures in degrees for a city are listed.

58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57

If a value of 80.2° is added to the data, how does the range change

The range stays 47°.
The range decreases to 47°.
The range stays 48°.
The range increases to 50°.
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The shoe sizes of a group of middle school girls are shown.


5.5 6 7 8.5 6.5
6.5 8 7.5 8 5

If a shoe size of 7 is added to the data, how does the IQR change?

The IQR becomes a 2.5.
The IQR becomes a 1.5.
The IQR remains a 3.
The IQR remains a 2.

Answer 1

Original data set:

57, 58, 61, 66, 71, 77, 82, 91, 95, 100, 102, 105

Subtract the smallest number from the biggest number:

57, 58, 61, 66, 71, 77, 82, 91, 95, 100, 102, 105

105 - 57

= 48

The range for the original data set is 48

New data set:

57, 58, 61, 66, 71, 77, 80.2, 82, 91, 95, 100, 102, 105

Subtract the smallest number from the biggest number:

57, 58, 61, 66, 71, 77, 80.2, 82, 91, 95, 100, 102, 105

105 - 57

= 48

The range for the new data set is STILL 48

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If a shoe size of 7 is added to the data, how does the IQR change?

The IQR remains a 2.

Explanation:

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