Refer to the accompanying data set and use the 25 home voltage measurement to co

Question

Refer to the accompanying data set and use the 25 home voltage measurement to construct a frequency distribution with 5 classes. Begin with a lower class limit of 120.8 volts, and use a class width of 0.2 volts. Does the result appear to have a normal distribution? Why or why not?

Full Voltage Measurements From a Home Home Home Home Home Day (volts) Day (volts) Day (volts) Day 1 121.1 8 121.1 15 121.5 22 121.3 2 121.5 9 121.3 16 121.4 23 121.1 3 121.3 10 121.5 17 121.1 24 121.1 4 121.5 11 121.3 18 121.0 25 121.3 5 121.6 12 121.0 19 121.3 6 120.8 13 121.2 20 121.7 7 121.2 14 121.4 21 121.4

Explanation / Answer

The frequency table will be:

Option A is correct.

Voltage (Volts) Frequency 120.8 - 120.9 1 121.0 - 121.1 7 121.2 - 121.3 8 121.4 - 121.5 7 121.6 - 121.7 2

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