Answer:
I can't tell if this is a multiple choice question, so I'm going to answer it the best I can:
$50-$3/day=16 days worth of coffe.
Step-by-step explanation:
First of all you need to divide your $50 by 3, because you need to see exaclty how many days worth of coffe it is. I hope that helps!
65 x .12 = 7.8
65 - 7.8 = 57.2
Answer:
C
Step-by-step explanation:
The midpoint of the coordinate passing through (2, 4) and (2, -7) is ![(2, \frac{-5}{2})](https://tex.z-dn.net/?f=%282%2C%20%5Cfrac%7B-5%7D%7B2%7D%29)
<h3>The midpoint of a line</h3>
The formula for calculating the midpoint of a line is expressed as:
![M(x,y) =(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})](https://tex.z-dn.net/?f=M%28x%2Cy%29%20%3D%28%5Cfrac%7Bx_1%2Bx_2%7D%7B2%7D%2C%20%5Cfrac%7By_1%2By_2%7D%7B2%7D%29)
Given the coordinate points (2, 4) and (2, -7). Substituting this values
![M(x,y) =(\frac{2+2}{2}, \frac{2-7}{2})\\M(x,y) =(\frac{4}{2}, \frac{-5}{2})\\M(x,y) =(2, \frac{-5}{2})](https://tex.z-dn.net/?f=M%28x%2Cy%29%20%3D%28%5Cfrac%7B2%2B2%7D%7B2%7D%2C%20%5Cfrac%7B2-7%7D%7B2%7D%29%5C%5CM%28x%2Cy%29%20%3D%28%5Cfrac%7B4%7D%7B2%7D%2C%20%5Cfrac%7B-5%7D%7B2%7D%29%5C%5CM%28x%2Cy%29%20%3D%282%2C%20%5Cfrac%7B-5%7D%7B2%7D%29)
Hence the midpoint of the coordinate passing through (2, 4) and (2, -7) is ![(2, \frac{-5}{2})](https://tex.z-dn.net/?f=%282%2C%20%5Cfrac%7B-5%7D%7B2%7D%29)
learn more on midpoint here: brainly.com/question/5566419
Answer:
Approximately normal
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean
and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean
and standard deviation ![s = \sqrt{\frac{p(1-p)}{n}}](https://tex.z-dn.net/?f=s%20%3D%20%5Csqrt%7B%5Cfrac%7Bp%281-p%29%7D%7Bn%7D%7D)
In this question:
As the sample size is above 30, even though the underlying distribution is right-skewed, the shape of the sampling distribution of the sample means will be approximately normal.