How many different 2 person committees can be formed from the 100 members of the Senate?

For the wheel illustrated in the figure below, explain how (a) riser placement; (b) padding; and (c) chills may be used to help feed molten metal and eliminate porosity in the isolated hub boss.

Calculate the control limits for averages and ranges for the following: number of samples = 5; average of averages = 40.5; UCLR = 3.50.

A large state university finds that 82 of a random sample of 200 of its first-year students engage in binge drinking.  Find a 90%  confidence interval for the proportion of all first-year students at the state university who engage in binge drinking.  Also find the margin of error.  Round all of your answers to four decimal places.   90% Confidence Interval:  ( , ) Margin of Error:   

You want to know what proportion of adults in the United States use an electric toothbrush.  How many adults have to be surveyed to estimate this proportion with a margin of error of 3% using a 95% confidence interval?

You want to know what proportion of adults in the United States use an electric toothbrush.  How many adults have to be surveyed to estimate this proportion with a margin of error of 4% using a 95% confidence interval?

Suppose in the mass-spring system, the position function is given by

Find the general solution:

In each of the following equation, determine what your guess should be for  should be when using the method of undetermined coefficients. 

Suppose the position function to a mass-spring system is given by   1.