Add up all the rainfall amounts and divide by 11
Student's error is –5 < x.
Solution:
Step 1: Given inequality
31 < –5x + 6
Step 2: Subtract 6 from both sides of the inequality.
31 – 6 < –5x + 6 – 6
25 < –5x
Step 3: Multiply both sides by –1 to reverse the inequality.
25 × (–1) > –5x × (–1)
–25 > 5x
Step 4: Divide by 5 on both sides.
–5 > x
The correct answer is –5 > x.
Student's error is –5 < x.
Answer:
The probability that he is actually infected with HIV given that the man selected with no known risk behavior tests positive for HIV is 0.9999.
Step-by-step explanation:
Denote the events as follows:
<em>X</em> = a man with no known risk behavior is infected with HIV
<em>Y</em> = the test is positive
The information provided is:
P (X) = 0.0001
P (Y'|X) = 0.0001
P (Y'|X') = 0.0001
Compute the probability that he is actually infected with HIV given that the man selected with no known risk behavior tests positive for HIV as follows:
Thus, the probability that he is actually infected with HIV given that the man selected with no known risk behavior tests positive for HIV is 0.9999.
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