Reference no: EM132381901

1) Assume breast cancer affects 0.007 of the female population between 45 and 55 years of age.

There are two kinds of positive test results:

? True positive (the test indicates you have a disease, and you actually have it)

? False positive (the test indicates you have a disease, but you actually do not).

Assume mammograms are

? 0.90 accurate detecting people who actually have breast cancer (true positive rate)

? 0.92 accurate for people who do not have breast cancer (true negative rate).

Compute the probability that a female between the ages of 45 and 55 who tests positive for breast cancer has breast cancer, and enter your answer with 3 decimal places.

2) In a normal distribution the probability of a value larger than one standard deviation above the mean is:

Question options:

a) 32%

b)16%

c) 68%

d) There is not enough information to answer the question

3) In a normal distribution the probability of a value between 2 and 3 standard deviation below the mean is

a) .15%

b) -2.35%

c)-.15%

d) 2.35%