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Free Binomial Distribution Calculator for New Zealanders

For n independent trials each with success probability p, this calculator gives the probability of exactly k successes, plus the cumulative probabilities at most and at least k.

Parameters

20
1100
0.50
01
10
0100
P(X = k)
0.176
binomial PMF

With n = 20, p = 0.5, P(X = 10) = 0.176.

P(X <= k)0.588
P(X >= k)0.588
Mean (n p)10
Variance (n p (1-p))5

About our Binomial Calculator

Disclaimer: This calculator is for information only and does not constitute financial advice. Real-world figures may differ due to fees, rounding, rate changes, and policy specifics. Always confirm figures with the relevant provider before signing anything.