Answer:
The margin of error for a sample size of 250 is 6
Step-by-step explanation:
The margin of error is given as
1/square root of the sample size
Thus, margin of error for a sapless size of 250 is
1/√250
= 1/15. 811
= 6
Answer:4.31
Step-by-step explanation:
Answer:
find the percentage equal to 70/80
Answer:
The first and the third answer!
Step-by-step explanation:
The slope is NOT -6, it is -3/2 !!
The y intercept is 0
and the last one isn't right bc the slope and intercept is wrong!!!
I hope this helps, tho!! Have an awesome day :D
So basically you are going to line up your equations (already done). Next, you will just add each term. So x + 3x = 4x, then 2y - 2y = 0 (we wouldn't put anything) then 7 - 3 = 4
So then we have all of our terms figured out and will have 4x = 4 then divide 4x by 4 to get x alone and then you will also divide the four that is by itself by four to equal one. So, your answer is x = 1. I hope that helps!
