(Question 3A particular concentration of a chemical found in polluted water has beenfound to be lethal to 20% of the fish that are exposed to the concentration for24 hours. Twenty fish are placed in a tank containing this concentration ofchemical in water.3-'a. Find the probability that exactly 14 survive.survive.b. Find the probability that at least 10c. Find the probability that at most 6 lethal.d. Find the mean and variance of the number that survive.(~210n-20

Givenp=0.20n=20Let "x" be the number of fishes survivex~Binomial(n=20,p=0.20)P(X=x)=Cxn×px×(1-p)n-x…

Answered: Question 3 A particular concentration…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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