Answer:
-4 + (-9)
Step-by-step explanation:
The answer is C, 8 weeks.
Answer:
A normal distribution has a mean of 50 and a standard deviation of 10. What is
the probability of selecting a number between 20 and 60?
Answer:
B. 1.70
Step-by-step explanation:
Given:


Substituting the given values into the formula to find the test statistic z:
