Answer:
3c+4
Step-by-step explanation:
When distributing a problem with 2 of the same signs, all you have to do is leave it the way it is. Basically pretend it's not there at all and you should the answer
The variance of a distribution is the square of the standard deviation
The variance of the data is 2.2
<h3>How to calculate the variance</h3>
Start by calculating the expected value using:

So, we have:

This gives

Next, calculate E(x^2) using:

So, we have:


The variance is then calculated as:

So, we have:


Approximate

Hence, the variance of the data is 2.2
Read more about variance at:
brainly.com/question/15858152
Answer: You can count them by 2?
Step-by-step explanation:
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Answer:it's 1/625
Step-by-step explanation:
You times the denominator 5 from 1/5 by 5 4 times to get 1/625