TI-84 Calculator Keystroke Sequences

What is the keystroke sequence to find the area under the z-distribution?

• Stat → Calc → 1-Var Stats

• 2nd → VARS → normalcdf(LB, UB)

• 2nd → VARS → χ²–cdf

• Stat → Edit → Enter x-values into L₁

How do you turn diagnostics on for a TI-84 calculator?

• Stat → Calc → LinReg(a+bx)

• 2nd → VARS → invNorm(

• 2nd → 0 (catalog) → DiagnosticOn

• Stat → Edit → Enter data into L₁

Which keystrokes are used to calculate the linear regression slope and y-intercept?

• Stat → Calc → 1-Var Stats

• 2nd → VARS → tcdf(LB, UB, df)

• Stat → Calc → LinReg(a+bx)

• 2nd → VARS → χ²–cdf

Which keystrokes are used to create a normal probability plot?

• Stat → Edit → Enter data into L₁

• StatPlot → select the last graph

• 2nd → VARS → binompdf(n, p, x)

• 2nd → VARS → geometcdf(p, n)

How do you calculate the area in the tail of a t-distribution?

• 2nd → VARS → tcdf(LB, UB, df)

• Stat → Calc → 1-Var Stats

• 2nd → VARS → normalcdf(LB, UB)

• Stat → Edit → Enter x-values into L₁

What is the keystroke sequence to find the t-score corresponding to an area in the tail?

• 2nd → VARS → invT(area of tail, df)

• Stat → Calc → 1-Var Stats

• 2nd → VARS → normalcdf(LB, UB)

• Stat → Edit → Enter x-values into L₁

Which keystrokes are used to calculate the standard deviation on a TI-84 calculator?

• Stat → Calc → 1-Var Stats

• 2nd → VARS → normalcdf(-99, UB)

• Stat → Calc → LinReg(a+bx)

• 2nd → 0 (catalog) → DiagnosticOn

How do you calculate the area in the tail of a χ²-distribution?

• 2nd → VARS → χ²–cdf(LB, UB, df)

• Stat → Calc → 1-Var Stats

• 2nd → VARS → normalcdf(LB, UB)

• Stat → Edit → Enter x-values into L₁

What is the keystroke sequence to create a graph scatterplot and regression line?

• x (independent) variable in L₁, y (dependent) variable in L₂

• Stat → Calc → 1-Var Stats

• 2nd → VARS → normalcdf(LB, UB)

• Stat → Edit → Enter x-values into L₁

Which keystrokes are used to create a graph residual plot?

• x (independent) variable in L₁, y (dependent) variable in L₂

• Stat → Calc → LinReg(a+bx)

• 2nd → VARS → invNorm(

• Stat → Edit → Enter data into L₁