Lemma
EasyDiscrete distributions
OpenStax, Statistics §4.3 Binomial Distribution (Optional) · Try It 2 · Probability · Discrete distributions

Binomial Distribution (Optional) · Try It 2

A trainer is teaching a dolphin to do tricks. The probability that the dolphin successfully performs the trick is 35 percent, and the probability that the dolphin does not successfully perform the trick is 65 percent. Out of 20 attempts, you want to find the probability that the dolphin succeeds 12 times. State the probability question mathematically.

~5 minWritten answer · compare with the solution

OpenStax, Statistics · §4.3 Binomial Distribution (Optional) · Try It 2

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.