In a group of 20 batteries, 3 are dead. You choose 2 batteries at random.a) Create a probability model for the number of good batteries you get.b) What's the expected number of good ones you get?c) What's the standard deviation?a) Create a probability model.Number goodP(Number good)(Round to three decimal places as needed.)b) The expected number of good batteries is(Round to two decimal places as needed.)c) The standard deviation is.(Round to two decimal places as needed.)Enter your answer in each of the answer boxes.

Name: In a group of 20 batteries, 3 are dead. You choose 2 batteries at ran
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: In a group of 20 batteries, 3 are dead. You choose 2 batteries at random.a) Create a probability model for the number of good batteries you get.b) What's the expected number of good ones you get?c) What's the standard deviation?a) Create a probabili

a) Let x be the number of good batteries which follows binomial distribution with sample size 2 and…

Math

Statistics

In a group of 20 batteries, 3 are dead. You choose 2 batteries at random. a) Create a probability model for the number of good batteries you get. b) What's the expected number of good ones you get? c) What's the standard deviation?

In a group of 20 batteries, 3 are dead. You choose 2 batteries at random. a) Create a probability model for the number of good batteries you get. b) What's the expected number of good ones you get? c) What's the standard deviation?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A delegation of 3 is selected from a city council made up of 5 liberals and 4 conservatives. What is the expected number of liberals in the delegation? What is the expected number of liberals? (Round to the nearest hundredth as needed.)
Two coins are selected from a pocket that contains 3 nickels and 4 quarters. The random variable is the total value in cents of the 2 selected coins. Find the probability distribution. Find the expected value, variance, and standard deviation.
A manufacturing machine has a 2% defect rate.If 7 items are chosen at random, what is the probability that at least one will have a defect?
A manufacturing machine has a 2% defect rate.If 8 items are chosen at random, what is the probability that at least one will have a defect?
Assume that when adults with smartphones are randomly selected, 58%use them in meetings or classes. If 13 adult smartphone users are randomly selected, find the probability that fewer than 4 of them use their smartphones in meetings or classes.
A manufacturing machine has a 7% defect rate.If 4 items are chosen at random, what is the probability that at least one will have a defect?
The probability that an individual is left-handed is 12%. In a randomly selectedclass of 30 students, what is the probability of finding exactly 4 left-handedstudents?
Assume that when adults with smartphones are randomly selected, 43% use them in meetings or classes. If 8 adult smartphone users are randomly selected, find the probability that exactly 4 of them use their smartphones in meetings or classes.