Answer:
x=-1/2
Step-by-step explanation:
and now we check
so the answer is -1/2
Mrs. Fansler gives 25 assignments while Ms. Taylor gives 20 assignments. What is the ratio of Mrs. Fansler’s assignments to Ms.
1 answer:
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Answer:
d. 0.3446
Step-by-step explanation:
We need to calculate the z-score for the given weekly income.
We calculate the z-score of $1000 using the formula
From the question, the standard deviation is dollars.
The average weekly income is dollars.
Let us substitute these values into the formula to obtain:
We now read from the standard normal distribution table the area that corresponds to a z-score of -0.4.
From the standard normal distribution table, .
We round to 4 decimal places to obtain: .
Therefore the probability that a trainee earns less than $1,000 a week is .
The correct choice is D.
