In One Region, the September Energy Consumption Levels for Single-Family

question 127

Multiple Choice

In one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean of 1050 kWh and a standard deviation of 218 kWh. For a randomly selected home, find the probability that the September energy consumption level is between 1100 kWh and 1225 kWh.

• A) 0.0910
• B) 0.2881
• C) 0.3791
• D) 0.1971

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