A report says that 82% of British Columbians over the age of 25 are high school graduates. A survey of randomly selected residents of a certain city included 1290 who were over the age of 25, and 1012 of them were high school graduates.

Part a
Which of the following gives the approximated model for the sample proportion of high school graduates in a sample of 1290 students?
Answer: Select one N(0.78,0.011) N(0.82,0.011) N(78,1.11) N(82,1.11) N(1012, 13.80)

Part b
How many standard deviation away is the sample proportion of high school graduates (1012/1290) is away from the mean? You will need to use the correct approximated model to answer the question.
Answer: Select one Less than -2 Between -2 and -1 Between -1 and 1 Between 1 and 2 More than 2

Part c
Is the city's result of 1012 unusually high, low, or neither? You will need to use the correct approximated model to answer the question.
Answer: Select one High Low Neither