Question

1. If an urn has 5 white balls, 10 red balls, and 6 green balls, what is the probability that 4 randomly selected balls are all green?

Name: 1 if an urn has 5 white balls 10 red balls and 6 green balls what is the probability that 4 randomly selected balls are all green note the answer is not 1399 25063 or 00067 i think it should 84724
Uploaded: 2023-03-20T14:11:38-08:00
Duration: 1 min 16 s
Channel: Pritesh Ranjan
Description: 1 if an urn has 5 white balls 10 red balls and 6 green balls what is the probability that 4 randomly selected balls are all green note the answer is not 1399 25063 or 00067 i think it should 84724

          1.  If an urn has 5 white balls, 10 red balls, and 6 green
balls, what is the probability that 4 randomly selected balls are
all green?

Added by Lu-S T.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Pritesh Ranjan

03/20/2023

Step 1

This can be calculated using the combination formula, which is: $$C(n, k) = \frac{n!}{k!(n-k)!}$$ In our case, there are 21 balls in total (5 white, 10 red, and 6 green), and we want to choose 4 of them. So, we have: $$C(21, 4) = \frac{21!}{4!(21-4)!} = Show more…

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