Stalin and rugby wrote: »
Diamondsandrose wrote: » Anyone doing OL maths I found these notes which might be useful, thought I'd share them http://2fm.rte.ie/blogs/countdown/Leaving%20Cert%20ordinary%20maths%20notes.pdf
Monkeyloops wrote: » Does anyone know how to get two points to plot from the line k: x-1=0
finality wrote: » X=1, and use any value of y as the line will be vertical and will pass through every single value of y. You could let y equal 74434673/22134 if you wanted, but it's easiest to go with 0 and 1 :P
Martin_94 wrote: » Does anyone know if there's a way I can do standard deviation on my calculator, and will I still get the marks? My calculator is a "fx-83GT Plus".
skyscraperblue wrote: » You are absolutely grand doing standard deviation on the calculator, they expect you to and you'll get full marks. I have that calculator too, it's a bit long but here's how. To input data values: Use shift > setup > (down arrow) > 3.stat to make sure frequency is OFF. Then: mode > 2.stat > 2.A+BX > enter your values (use = to go down a row and the arrow keys to go over to the Y column when you need to) When all values are in press AC. To get the standard deviation: Shift > Stat (over no.1) > 4.VAR > 3.sigma-x > = this should give the standard deviation. You can also use option 2 within 4.VAR to get the mean, or A and B within 5.REG to get the y-intercept (A) and slope (B) of the line of best fit. PM me if this gets confusing or you need more help
Martin_94 wrote: » Thanks and can you just write the answer, you don't need like any other work to be shown?
Eathrin wrote: » Pokemon is sick and disturbing, can't understand why you guys like it:rolleyes: