Answer:

Step-by-step explanation:
Required
The population standard deviation
First, calculate the population mean

This gives:



The population standard deviation is:

So, we have:




Well, I do not know if I read this correctly. Are these the answers?
-5 ≥ -7
-5 ≤ -7
-5 > -7
-5 < -7
-5 = -7
If so, then -5 > -7 is a true statement because -5 is greater than -7.
Answer:

Step-by-step explanation:
So we have the equation:

Subtract 7 from both sides:

Divide both sides by 3:

So, the value of w is 4.
And we're done!
They are called unike fractions. If u would want to do anything to them u would have to make the denominaters the same
I’ll make it easier, so for number 2 on number 6 7/8 times 8 and 6 and you have 48, then add the top number which would be 55. Then for the second number, 4 1/3 do the same thing! 4*3= 12+1= 13 then add 13+55 and your answer is 68! Then put it in fraction form! 17/25, then all you do is simplify it! If it can’t be simplified (17/25 can not be simplified), it stays the same. Hope that helps! :)