TI-84
Sig Figs and Trig
More TI-84
Lies, Dang Lies, and Statistics
Misc Reminders
100

Steps for entering a fraction

What is ALPHA > Y ?

100

Captive and trailing zeros (eg 307 and 357.0)

What is a significant zero?

100
The unit for all trig answers on the SL exam

What is degrees?

100

The date and time of Paper 1

What is Thursday, May 15, 12:30?

100

The only instance that writing down your GDC steps earns method points on the exam.

What is when using the TVM solver?

200

Steps for turning on the correlation coefficient, r

What is MODE > STATDIAGNOSTICS ON?

200

Leading zeros (eg 0.357)

What are not-significant zeros?

200

Steps to display a scatterplot or a box and whisker plot 

What is Zoom: STAT?

200

What to do with your data when conducting a 2-Sample T Test

What is Pool?

200

The square root of x as a power

What is x^1/2?

300

Steps if graph isn't displaying 

What is checking that Plot1 is NOT highlighted?

Or

What is resetting the window using ZOOM > 6:STANDARD?

300

How you would solve sin x = 0.75

What is arcsin (0.75) or sin-1(0.75)?

300

How to enter data for a T-Test

What is Lists?

300

Conclusion if p < significance level

What is reject the null hypothesis?

300

The value that tells you if a model is a good fit for a data set.

What is R2?

400
Method to find the area under a curve

What is graphing and using 2ND TRACE > 7: Integral f(x) dx?

400

The standard form of a sinusoidal model, (not in the formula book!)

f(x) = a sin (bt) + c

400

Use it to find the unknown limit of a known integral value

What is Apps, Solver?

400

Never use this word in the hypotheses for Chi-square tests of independence.

What is correlate?

400

The outlier formula

What is Q1 – 1.5*IQR? What is Q3 + 1.5*IQR?

500

What to do if your GDC is just acting goofy

What is 2nd, +, 7, Enter, 2? (Clear the RAM)
500

0.00829871 rounded to 3 sig figs

What is 0.00830?

500

1E99

What is the GDC version of infinity?

500

The distribution you should draw to support your answer.

What is normal distribution?

500

You CANNOT do this on a "show that" problem

What is start with the "show that" information?