Variables
This is the standard key, which pressing Alpha will turn into the variable Q.
What is 9?
When you know you are looking for a specific function in your calculator and you cannot remember which menu it is in, if all else fails, this is where you can go to find it (along with every other function in the calculator in alphabetical order).
What is the Catalog?
[2nd -> 0]
What is Math?
These are the parameters of a binomial distribution.
What are n (the number of trials) and p (the probability of success in each trial)?
What is 50 degrees?
This is the number of default numeric variables are present and usable in the calculator.
What is 27?
This is the meaning of the acronym GDC (in the context of solving mathematics problems).
What is Graphic Display Calculator?
This is the menu that allows you to evaluate zeros, extrema, intersections, derivatives, and area under the curve within boundaries.
What is 2nd -> Calc?
[2nd -> Trace]
This is the function to use if you have the probability of a specific value or lower in a specific normal distribution and want to determine that specific value.
What is invNorm?
This is the derivative of y = 3 ln(x4 - 5x + 3) - 2x2 when x = 3.
What is approximately -7.52?
This is how to assign a value to a variable.
What is [Insert Value] -> Sto-> -> [Insert Variable]?
This is the function used to reduce an augmented matrix down so the rightmost column is the set of solutions for each respective variable.
What is RREF (Reduced Row Echelon Form)?
After entering 2nd -> Calc -> Maximum, this is how to find the coordinates of the maximum value in the function on the graph.
What is scroll to the left of the maximum value, click enter, scroll to the right of the maximum value, click enter again, and click enter a third time to find the estimated maximum point?
This is the difference between a pdf and a cdf.
What is a pdf will calculate the probability of a specific discrete value while the cdf will calculate the probability within given boundaries?
This is the solution to xx - 5 = 2x - 2.
What is x ≈ 2.37?
This is how to enter in the cacluator the variable Y1, which is the output variable of the first function listed in the Y= menu.
?What is Vars -> Y-Vars -> Function -> Y1?
What is 9 -> 2nd -> , -> 8?
This is the area under the curve y = xx + 3x between x = 0 and x = 2.
What is about 8.83?
When running a 2-sample T-Test, this is where to enter the signficance level in the calculator.
This is the solution to the system:
x + 2y + 3z = 5
5x - 4y - 3z = 31
2x + y - 4z = -1
What is (5, -3, 2)?
The button next to Alpha contains a shortcut for the variables X, T, θ, and n. This is how to change the default for the key to be the variable T.
What is go to the Mode menu and select Parametric?
What is Apps -> PlySmlt2?
Then Polynomial Root Finder or Simultaneous Eqn Solver, depending on what you're trying to find.
This is the total area bounded by the x-axis, the y-axis, the line x = 3, and the curve of y = x3 - 3 ln(x) - 10.
What is about 19.3?
In the event running a regression model does not show you the correlation coefficient, this is how to fix your calculator so it does show you the correlation coefficient when running a regression model.
What is go to the Mode menu and select On under Stat Diagnostics?
These are all of the solutions to 2x3 - 18x2 + 4x + 96 = 0.
What is x = 8, 3, -2?