YMS Chapter 2: The Normal Distributions
AP Statistics at LSHS
Mr. Molesky
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Across
Down
2. Another name for a standardized value of an
observation in a normal distribution [zscore]
4. Normal distributions are good approximations of _
outcomes. [chance]
8. Area under a density curve corresponds to the _ of
observations. [proportion]
9. Another name for 68-95-99.7 Rule [empirical]
12. Points at which a change in curvature takes place
on a normal curve. [inflection]
13. The Standard Normal Table reports areas to the _
of z. [left]
15. Point at which a density curve would balance.
[mean]
16. 99.7% of observations in a normal distribution fall
within _ standard deviations of the mean. [three]
17. Smooth curve that idealizes a distribution and has
area=1: _ Curve [density]
18. Greek letter that represents standard deviation
[sigma]
19. Normal distributions are _, not skewed
[symmetric]
1. Percent of distribution to the left of an observation
[percentile]
3. Solutions to statistical problems should always be
written in _ [context]
5. Symmetric, bell-shaped distribution. [Normal]
6. Another name for the Normal Distribution-named
after a mathematician. [Gaussian]
7. Approximately normal distributions have
approximately _ quantile plots. [linear]
10. Greek letter that represents mean [mu]
11. Normal distribution N(1,0): _ Normal Distribution
[standard]
14. Another name for a Normal Probability Plot:
Normal _ Plot [quantile]
15. Point that determines "equal areas" under a
density curve. [median]
18. When working a normal distribution problem,
always sketch and _ [shade]
Across
20. Idealized description of a distribution:
Mathematical _ [model]
21. Common name for a normal distribution
[bellcurve]