So you want to cross multiply. then it would be 3x=25 then divide by 3 isolating x. x=25/3
Answer:
Example 0-30 in 0-5 5-10 10-15 etc... upto 25-30
a) 12 and 15 or 10 and 15
b) none
c) none
a) Confidence Level Margin of Error Error Bar
68.3%, sx 12.2857 ±2.275 (±18.52%)
so a0 could be also 12.2857 - 2.275 = 10
Answer therefore may be 10 and 15
So try do a histogram go in 10's across 1-10,10-20,20-30,30-40,40-50
And if mean is 43 then you would need to multiply everything inside box by 0.3 before you can start the y axes
questions like this start with 0 - 50
3.25s - 35.5 = 663.25
---Add 35.5 to each side
3.25s = 698.75
---Divide both sides by 3.25
s = 215
Hope this helps!! :)
