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

question 122

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. If 50 different homes are randomly selected, find the probability that their mean energy consumption level for September is greater than 1075 kWh.

• A) 0.2910
• B) 0.4562
• C) 0.0438
• D) 0.2090