Explain how filing your tax return online can make payments easier.

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent