Purchase Solution

# Simple Probability

Not what you're looking for?

A factory finds,on average, 20% of the widgets produced by a given machine will be defective for certain specified requirements. If 10 widgets are selected at random from the day's production of this machine, find the probability:

a.) That exactly 2 will be defective
b.) That 2 or more will be defective
c.) That more than 5 will be defective

##### Solution Summary

The solution answers the question(s) below.

##### Solution Preview

Probability of defective item = p = 0.2
Probability of non defective = q = 1 - 0.2 = 0.8

a.)
Probability of exactly two defective widgets,
P= (10C2)*p^2*q^8
=>P = (10*9/2)*(0.2)^2 * (0.8)^8
=> P= 0.301989888

b.)
Probability of 2 ...

Solution provided by:
###### Education
• MSc , Pune University, India
• PhD (IP), Pune University, India
###### Recent Feedback
• " In question 2, you incorrectly add in the \$3.00 dividend that was just paid to determine the value of the stock price using the dividend discount model. In question 4 response, it should have also been recognized that dividend discount models are not useful if any of the parameters used in the model are inaccurate. "
• "feedback: fail to recognize the operating cash flow will not begin until the end of year 3."
• "Great thanks"
• "Perfect solution..thank you"

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.