We will wrap up our Data Analysis unit this week with a Test on Thursday 2-2-12.
Homework tonight is a worksheet. Download Statistics Part I Review
Please start studying your past quiz and homework on this unit. You must memorize the formula for z score:
z = (x - mean)/standard deviation. Also, memorize the empirical rule: 68% of the data under a normal distribution curve is one standard deviation away from the mean. 95% of the data under a normal distribution curve is two standard deviations away from the mean. And 99.7% of the data under a normal distribution curve is three standard deviations away from the mean.
Other vocabulary that you are expected to know is: mean, mode, median, range, interquartile range-IQR, Q1, Q3, box and whisker plot, variance (= standard deviation squared) 5 number summary, frequency, and how to use the z table(chart) and mean absolute deviation. Study all notes.
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