Answer: The first term is
Step-by-step explanation:
1. To rewrite the given polynomial in descending order, you must see the exponent of each variable of the terms. Then, you must arrange the terms from bigger to smaller.
2. Keeping this on mind, you have:
3. As you can see, the first term is:
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:
By the Central Limit Theorem:
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