Question 1: Refer to accompanying data set and use the25 home voltage measurements to construct a frequency distributionwith five classes. Begin with a lower class limit of 121.7 volts,and use a class width of 0.2 volt. Does the result appear to have anormal distribution? Why or why not?
Voltage Measurements from a Home  Â
Day | Home (volts) | Day | Home (volts) | Day | Home (volts) | Day | Home (volts) |
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1 | 121.9 | 8 | 121.9 | 14 | 122.3 | 20 | 122.6 |
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2 | 122.4 | 9 | 122.2 | 15 | 122.3 | 21 | 122.3 |
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3 | 122.2 | 10 | 122.4 | 16 | 122.3 | 22 | 122.2 |
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4 | 122.3 | 11 | 122.2 | 17 | 121.8 | 23 | 121.9 |
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6 | 122.6 | 12 | 122.1 | 18 | 122.0 | 24 | 121.9 |
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7 | 122.2 | 13 | 122.2 | 19 | 122.1 | 25 | 122.2 |
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Complete the frequency distribution below.
Answer: Fill in the blanks in voltage and frequencysection.
Voltage (volts) | Frequency |
121.7- | |
__-__ | |
__-__ | |
__-__ | |
__-__ | |
Question 2: The data represents the daily rainfall (ininches) for one month. Construct a frequency distribution beginningwith a lower level class limit of 0.00 and use a class width of0.20. Does the frequency distribution appear to be roughly a normaldistribution
0.47 | 0 | 0 | | 0.23 | 0 | 0.46 |
0 | 0.22 | 0 | | 0 | 1.37 | 0 |
0.13 | 0 | 0.01 | | 0 | 0.22 | 0 |
0.19 | 0.88 | 0 | | 0.01 | 0 | 0.26 |
0 | 0.22 | 0 | | 0 | 0.11 | 0 |
Answer: Solve answer for frequency
Daily Rainfall (in inches) | Frequency |
0.00-0.19 | |
0.20-0.39 | |
0.40-0.59 | |
0.60-0.79 | |
0.80-0.99 | |
1.00-1.19 | |
1.20-1.39 | |
| |
Please show work