In a certain county in 2013, it was thought that 50% of men 50 years old or older had never been screened for prostate cancer.
1 answer:
Answer:
120,0.60,100
Step-by-step explanation:
Given that in a certain county in 2013, it was thought that 50% of men 50 years old or older had never been screened for prostate cancer.
Suppose a random sample of 200 of these men shows that 120 of them had never been screened.
a) the observed frequency = 120
b) The observed proportion of men who said they had not been screened
=
c) Expected number in the sample to say they had never been screened if 50% is the correct rate
= np
=
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We're given that the purple (smaller) square has a side length of x inches.
We are also given that the blue band has a width of 5 inches.
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