Question
Asked Dec 9, 2019
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Complete the frequency distribution shown below. 

Complete the frequency distribution shown below
Low Temperatures, Summer 2001 in NJ (in Fahrenheit)
Temp (F) Frequency,
Midpoint Relative
Cumulative
Frequency
Frequency
40-44
8.
45-49
7.
5.
15
50-54
55-59
60-64
4.
65-69
4.
70-74
7.
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Complete the frequency distribution shown below Low Temperatures, Summer 2001 in NJ (in Fahrenheit) Temp (F) Frequency, Midpoint Relative Cumulative Frequency Frequency 40-44 8. 45-49 7. 5. 15 50-54 55-59 60-64 4. 65-69 4. 70-74 7.

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Expert Answer

Step 1

The midpoint is obtained below:

The formula for midpoint is,

Midpoint = Upper bound + Lower bound / 2

The midpoints of each class are obtained below:

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Upper bound +Lower bound Temp Frequency, f Midpoint 2 42 40-44 47 45-49 50-54 52 55-59 15 57 60-64 4 62 65-69 4 67 70-74 72

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Step 2

The relative frequency is obtained below:

The formula for relative frequency is,

Relative frequency = Class frequency / Total frequency

The relative frequencies for each class are obtained below:

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Classfrequency Relativefrequency Temp Frequency, f Total frequency 0.16 =- 50 40-44 0.14 = 50 45-49 5 0.10 = 50 50-54 5 15 0.30 : 50 55-59 15 %3D 0.08 = 50 60-64 4 %3D 0.08 = 50 65-69 4 0.14 = 50 70-74 Total frequency = 50

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Step 3

The cumulative frequency is obtaine below

The formula for cumulative frequency is,

Cumulative frequency for class I = &sum...

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Cumulative frequency for class I= E Frequency upto class į. Temp Frequency, f 40-44 45-49 8 +7 = 15 15 + 5 = 20 20 + 15 = 35 35 +4 = 39 39 +4 = 43 43 + 7= 50 50-54 5 55-59 15 60-64 4 65-69 4 70-74 Total frequency = 50

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