AP Statistics Calculator Functions

Questions and Answers

What does STAT PLOTS allow you to show?

Scatterplots

Histograms

Boxplots

All of the above (correct)

What is the purpose of the STAT PLOT w/ TRACE function?

It traces the plots.

What do 1-Var Stats provide?

Mean, Standard Deviation, and 5-number summary.

What does binompdf (n, p, x) calculate?

The probability of exactly x successes in n trials. Signup and view all the answers

What does binomcdf (n, p, x) compute?

Cumulative probability of x or fewer successes. Signup and view all the answers

What does geometpdf (p, x) measure?

The probability that the first success occurs on the x'th trial. Signup and view all the answers

What does geometcdf (p, x) return?

Cumulative probability that the first success occurs on the x'th trial. Signup and view all the answers

What does normalcdf (lowerbound, upperbound, mean, SD) calculate?

The probability that a score is between a lower and upper bound. Signup and view all the answers

What does InvNorm (area, mean, SD) provide?

The score associated with a given area under the normal curve. Signup and view all the answers

What does tcdf (lowerbound, upperbound, df) yield?

The probability that a score is between two bounds for the specified degrees of freedom. Signup and view all the answers

What does invT(area, df) provide?

The t-score associated with a given area to the left of the score. Signup and view all the answers

What does X (squared) cdf (lowerbound, upperbound, df) compute?

The probability that a score is between two bounds for a specific degrees of freedom. Signup and view all the answers

What does X (squared) GOF-Test accomplish?

Conducts a chi-square goodness-of-fit test. Signup and view all the answers

What does LinReg (a*x + b) do?

Fits the equation y = ax + b to the data using least squares fit. Signup and view all the answers

What is displayed when DiagnosticOn is activated?

Values for r squared and r. Signup and view all the answers

What does 1-PropZInt provide?

A confidence interval for a proportion of successes. Signup and view all the answers

What does 2-PropZInt calculate?

Confidence interval for the difference between the proportion of successes in two populations. Signup and view all the answers

What does TInterval yield?

A confidence interval for a population mean. Signup and view all the answers

What does 2-SampTInt compute?

A confidence interval for the difference between two population means. Signup and view all the answers

What does 1-PropZTest do?

Conducts a hypothesis test for proportions. Signup and view all the answers

What is the purpose of a T-Test?

It serves as a hypothesis test for means. Signup and view all the answers

What does 2-PropZTest compare?

The proportion of successes from two populations. Signup and view all the answers

What does x-squared test determine?

The x-squared value and p-value for the null hypothesis. Signup and view all the answers

What does LinRegTTest perform?

T-test on the null hypothesis for linear regression. Signup and view all the answers

Study Notes

Calculator Functions in AP Statistics

STAT PLOTS: Enable visualization of data through scatterplots, histograms, boxplots, and modified boxplots.
STAT PLOT w/ TRACE: Allows tracing along plotted graphs for validation or exploration.
1-Var Stats: Provides essential statistical measures including mean, standard deviation (SD), and five-number summary (5-numsum).
binompdf (n, p, x): Computes the probability of achieving exactly x successes in n trials, with p denoting success probability.
binomcdf (n, p, x): Calculates the cumulative probability of obtaining x or fewer successes in a series of trials.
geometpdf (p, x): Determines the probability that the first success occurs on the x-th trial, where p is the probability of success on each trial.
geometcdf (p, x): Gives cumulative probability that the first success happens on or before the x-th trial.
normalcdf (lower bound, upper bound, mean, SD): Evaluates the probability that a score falls between a specified lower and upper bound, given a certain mean and SD.
InvNorm (area, mean, SD): Finds the score corresponding to a specified area (probability) under a normal distribution curve, determined by the given mean and SD.
tcdf (lower bound, upper bound, df): Computes the probability that a score lies within two bounds for a chosen degrees of freedom (df).
invT(area, df): Identifies the t-score linked to an area (probability) to the left under the Student's t-distribution curve for specified df.
X² cdf (lower bound, upper bound, df): Calculates the probability that a score lies between two bounds for a specific degrees of freedom related to chi-square distribution.
X² GOF-Test: Executes a chi-square goodness-of-fit test to assess if sample data fits a specific distribution.
LinReg (ax + b): Fits a linear equation y = ax + b to data from lists L1 and L2, utilizing least squares fitting method.
DiagnosticOn: Activates the display of r-squared and correlation coefficient (r) in the linear regression output.
1-PropZInt: Provides a confidence interval for the proportion of successes in a single population.
2-PropZInt: Calculates a confidence interval for the difference between two population proportions.
TInterval: Generates a confidence interval for the mean, comparing proportions of successes.
2-SampTInt: Computes a confidence interval for the difference between the means of two populations.
1-PropZTest: Conducts a hypothesis test for a proportion to evaluate significance.
T-Test: A hypothesis test to compare means.
2-SampTTest: Similar to T-Test but for two separate samples' means.
2-PropZTest: Hypothesis test for comparing proportions between two populations, utilizing a pooled sample proportion.
x-squared test: Provides the chi-squared value and p-value for testing the null hypothesis (H0) of no association between categorical variables.
LinRegTTest: Applies linear regression to test the null hypothesis (H0: B = 0), with the regression output stored in RegEQ and residuals in RESID.

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Description

Explore essential functions for AP Statistics with these flashcards. Learn terms like STAT PLOTS, 1-Var Stats, and more, along with their definitions and uses in statistical analysis. Perfect for mastering calculator functionalities for your exam preparation.