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Refer to the accompanying data set and use the 25 home voltage measurements to construct a...

Refer to the accompanying data set and use the 25 home voltage measurements to construct a frequency distribution with five classes. Begin with a lower class limit of 120.8 ​volts, and use a class width of 0.2 volt. Does the result appear to have a normal​ distribution? Why or why​ not? LOADING... Click the icon to view the data. Complete the frequency distribution below. Voltage​ (volts) Frequency 120.8minus 120.9 5 121.0minus 121.1 5 121.2minus 121.3 4 121.4minus 121.5 5 121.6minus 121.7 6 ​(Type integers or decimals rounded to the nearest tenth as​ needed.)

Does the result appear to have a normal​ distribution? Why or why​ not?

A. Yes comma because the frequencies start low comma reach a maximum comma then become low again comma and are roughly symmetric about the maximum frequency.

B. ​Yes, because the frequencies are roughly equal across the voltage classes.

C. ​No, because the frequencies are not equal across the voltage classes.

D. ​No, because the frequencies are randomly distributed.

E. No comma because the frequencies are roughly equal across the voltage classes.

math   Statistics-And-Probability   
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Answer #1
Voltage Frequency distribution

120.8-120.9

121.0-121.1

121.2-121.3

121.4-121.5

121.6-121.7

5

5

4

5

6

D. ​No, because the frequencies are randomly distributed.

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