Question

The data below shows the number of kilowatt hours of electricity used by the tenants of a small apartment building in a given month. What is a cumulative table that represents the data?

80 85 86 90 96 75 66 70

99 65 70 99 70 73 64 92

72 81 88 91 93 69 77 82




A: Kilowatt Hours Frequency Cumulative Frequency
60-69 7 24
70-79 4 24
80-89 5 24
90-99 6 24




B: Kilowatt Hours Frequency Cumulative Frequency
60-69 4 4
70-79 6 10
80-89 7 17
90-99 7 24



C:Kilowatt Hours Frequency Cumulative Frequency
60-69 4 4
70-79 7 11
80-89 6 17
90-99 7 24



D:Kilowatt Hours Frequency Cumulative Frequency
60-69 7 7
70-79 4 11
80-89 7 18
90-99 6 24

Answer 1

99 ecause it like id a guy and a guy were together it would be a 99 not 69 or even a 96

Answer 2

Using the table of data which contains the number of kWh used by the tenants in an apartment each month, we can obtain the frequency. The cumulative frequency is simply the previous frequencies added up. Among the choices, the correct answer is C.

Kilowatt Hours Frequency Cumulative Frequency
60-69 4 4
70-79 7 11
80-89 6 17
90-99 7 24