Answer:
(6y+0.4x)^2
Step-by-step explanation:
i just did my rsm hw so if ur here from that it's the right answer :)
Answer:
The average length of a ladybug is . 3 to . 4 inches.
Answer:
$6,120
Step-by-step explanation:
1/5 (one-fifth) of the family's annual income ($30,600) is spent on housing- as the word problem states.
You have to find 1/5 (one-fifth) of* $30,600.
Write it out as an equation.

*The <em>of</em><em> </em>in the word equation (1/5 of 30600) simply means multiplication.
Using the <u>normal distribution and the central limit theorem</u>, it is found that there is a 0.1635 = 16.35% probability of a sample result with 68% or fewer returns prior to the third day.
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, for a proportion p in a sample of size n, the sampling distribution of sample proportions has mean
and standard error 
In this problem:
- Sample of 500 customers, hence
.
- Amazon believes that the proportion is of 70%, hence

The <u>mean and the standard error</u> are given by:


The probability is the <u>p-value of Z when X = 0.68</u>, hence:

By the Central Limit Theorem



has a p-value of 0.1635.
0.1635 = 16.35% probability of a sample result with 68% or fewer returns prior to the third day.
A similar problem is given at brainly.com/question/25735688