Binomial
P(X)
Calculator
Answer questions like
"If I flip a coin 10 times, what are the chances I get exactly 6 heads?"
Parameters
Number of trials
n
−
+
Chance of success
p
−
+
%
Target successes
k
−
+
What do you want to know?
Exactly k
k or more
Fewer than k
The chance of getting
exactly
that many successes.
Result
—
Probability
Probability distribution
— each bar shows how likely that many successes is
Counted in result
Your exact target
Not counted