One photoshop charges $0.36 per print. Another photoshop charges $2.52 plus $0.08 per print. Juan finds that the cost of printin
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Using the <u>normal probability distribution and the central limit theorem</u>, it is found that:
a) There is a 0.1922 = 19.22% probability that Company B would charge more than Company A to deliver a small-item package.
b) The mean amount charged is of RM 51.5, with a standard deviation of 21.35.
In a normal distribution with mean and standard deviation
, the z-score of a measure X is given by:
- It measures how many standard deviations the measure is from the mean.
- After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.
By the Central Limit Theorem:
- When a <u>fixed constant k</u> multiplies a variable, the mean is
and the standard deviation is
- When two normal variables are subtracted, the mean is the subtraction of the means, while the standard deviation is the square root of the sum of the variances.
In this question, b is needed to solve a, so I am going to place the solution to item b first.
Item b:
Flat fee of RM20(not considered for the standard deviation), plus a variable fee of RM3.5, hence:
The mean amount charged is of RM 51.5, with a standard deviation of 21.35.
Item a:
This probability is . For the distribution, we have that:
Since A has a constant fee, it's standard deviation is 0, hence:
The probability is <u>1 subtracted by the p-value of Z when X = 0</u>, so:
has a p-value of 0.8078.
1 - 0.8078 = 0.1922.
0.1922 = 19.22% probability that Company B would charge more than Company A to deliver a small-item package.
A similar problem is given at brainly.com/question/25403659
Answer:
25 pounds of mix A
10 pounds of mix B
Step-by-step explanation:
Each pound of mix A takes half a pound of peanuts and each pound of mix B takes one fourth of a pound of peanuts. Total peanuts consumption is:
Each pound of mix A takes half a pound of almonds and each pound of mix B takes three fourths of a pound of almonds. Total almonds consumption is:
Solving the linear system:
In order to exactly use all of your ingredients, you should make 25 pounds of mix A and 10 pounds of mix B