Answer:
a) $825
b) $205.10
c) $47.5
d) R(51) = 872.5, R(52) = 920, R(53) = 967.5
Step-by-step explanation:
We are given the following information in the question:
where x is the number of lawn chairs.
a) Current daily revenue
Thus, $825 is the current daily revenue when Pierce sells 50 lawn chairs daily.
b) Revenue increase if 54 lawn chairs were sold each day
Thus, revenue increase $205.10 if 54 lawn chairs were sold each day.
c) Marginal revenue
Thus, $47.5 is the marginal revenue when 50 lawn chairs are sold daily.
d) R(51), R(52), and R(53)
Answer:
(A) P (D > 0) = 99.38%
(B) P (D > 15) = 10.56%
Step-by-step explanation:
The random variable D = difference, is defined as the difference between the reading test scores after and before the program.
The random variable <em>D </em>follows a normal distribution with mean, and standard deviation, .
(A)
Compute the probability that the children showed any improvement, i.e.
P (D > 0):
Use the standard normal random variable to determine the probability.
The percentage of children showed any improvement is:
0.9938 × 100 = 99.38%
Thus, 99.38% of children showed improvement.
(B)
Compute the probability that the children improved by more than 15 points, i.e. P (D > 15):
Use the standard normal random variable to determine the probability.
The percentage of children improved by more than 15 points is:
0.1056 × 100 = 10.56%
Thus, 10.56% of children showed improvement by more than 15 points.
In order to get rid of the fractions, you need to multiply the equation by 12
Answer:33mph
Step-by-step explanation:
the speed decrease by 40%
Therefore, (100-40)%*55miles/h
60%*55
0.6*55
33mph
Answer:
D.
Step-by-step explanation:
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