83.5k views
5 votes
A new surgery is successful 85% of the time. If the results of 6 such surgeries are randomly sampled, what is the probability that fewer than 4 of them are successful

1 Answer

4 votes

The probability that fewer than 4 of them are successful are 0.9527

Step-by-step explanation:

Given:

number of trials, n = 6

p(successful) = 0.85

P(x >= 4) = ?

The problem can be solved using binomial probability formula.

P(x >= 4) = 1 - binomcdf(6,0.85,4) = 1 - 0.0473

= 0.9527

Therefore, the probability that fewer than 4 of them are successful are 0.9527

User Gooey
by
8.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories