Need to brush up on basic math for a short exam.

Robos A Go Go

I just found out that I can get around my university's Quantitative Reasoning requirement by passing a 90 minute exam on some basic mathematical concepts. I passed Pre-Calc several years ago, so this test should be a breeze for me, but I still need to prepare a little in advance. I only have one chance to take this exam, and I want to be sure of myself before making an appointment to take it.

Here's what'll be on the test:

• arithmetic (particularly decimals and percents)
• graphs and charts (interpreting and creating)
• descriptive statistics (mean, median, mode, standard deviation)
• simple probability (normal distribution, sampling)
• inferential statistics (hypothesis testing, confidence intervals)
• linear growth (formula and graphing)
• exponential growth (formula and applications)

Can you guys think of any websites (or cheap books) that offer brief explanations of these subjects? Basically, I want a few quick tutorials and sample questions to refresh my memory.

Demerdar

http://www.khanacademy.org/

Pretty much any subject you can think of is on this website.

Six

yup