Stat
Lab
AP Statistics Calculator
Descriptive
Conf. Interval
Hypothesis Test
Regression
Distributions
Descriptive Statistics
// mean · median · std dev · IQR · 5-number summary
Enter Data (comma or space separated)
Tip: paste any list of numbers
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Confidence Interval
// z-interval · t-interval for means and proportions
Type
Z-Interval (Mean, σ known)
T-Interval (Mean, σ unknown)
Z-Interval (Proportion)
Sample Mean (x̄)
Population Std Dev (σ)
Sample Size (n)
Confidence Level (%)
Sample Mean (x̄)
Sample Std Dev (s)
Sample Size (n)
Confidence Level (%)
Sample Proportion (p̂)
Sample Size (n)
Confidence Level (%)
Calculate
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Hypothesis Test
// z-test · t-test for means and proportions
Type
Z-Test (Mean, σ known)
T-Test (Mean, σ unknown)
Z-Test (Proportion)
x̄ (Sample Mean)
μ₀ (Null Mean)
σ (Pop Std Dev)
n (Sample Size)
α (Significance Level)
x̄ (Sample Mean)
μ₀ (Null Mean)
s (Sample Std Dev)
n (Sample Size)
α (Significance Level)
p̂ (Sample Prop)
p₀ (Null Prop)
n (Sample Size)
α (Significance Level)
Alternative Hypothesis (Ha)
Two-tailed (≠)
Right-tailed (>)
Left-tailed (<)
Run Test
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Linear Regression
// LSRL · r · r² · slope · y-intercept · predictions
X values (comma separated)
Y values (comma separated)
Predict Y at X = (optional)
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Distribution Probabilities
// normal · binomial · t-distribution
Distribution Type
Normal Distribution
Binomial Distribution
T-Distribution
Mean (μ)
Std Dev (σ)
Find P(X __ value)
P(X < a) — less than
P(X > a) — greater than
P(a < X < b) — between
a
b
n (trials)
p (probability)
k (successes)
Calculate
P(X = k) — exactly k
P(X ≤ k) — at most k
P(X ≥ k) — at least k
t-score
Degrees of Freedom
Tail
Two-tailed p-value
Right-tail p-value
Left-tail p-value
Calculate
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