Answer:
b = 18 + a
Step-by-step explanation:
because b is the total number of employees during the holidays
so 18 is what they already have/have all the time plus the number of employees who are temporary during the holidays
The mean of the confidence interval is (0.3775 + 0.6225) / 2 = 0.5. Therefore, the standard deviation of the proportion would have been sqrt[0.5*(1 - 0.5) / n], where n is the sample size. This expression simplifies to sqrt(0.25/n).
A 95% CI has a corresponding z = 1.96, so since the distance from 0.5 to 0.3775 (or 0.6225 to 0.5) is equal to 0.1225. Therefore, if we divide 0.1225 / 1.96 = 0.0625, we get the value of the SD, and this should be equal to sqrt(0.25/n).
0.0625 = sqrt(0.25/n)
n = 64
This means that the proportion was 0.5 and the sample size was 64.
24 divided by 80= 0.3
24/30 there were 30 questions on the test and he got 24 right
Answer:
15.9
Step-by-step explanation:
Answer:
A) -10x - 24
Step-by-step explanation:
1. To simplify this expression, we apply the distributive property.
Therefore, the answer is A) -10x - 24.