Statistics Test 5 Johnson
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Last updated 4:00 PM on 1/31/23
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14 Terms
1
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"The Law of Large Numbers"
A principle of probability and statistics which states that as a sample size grows, its mean will get closer and closer to the average of the whole population.
2
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When calculating a linear transformation for a mean or median...
...multiply/divide and add/subtract
3
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When calculating a linear transformation for a standard deviation...
...multiply/divide only
4
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normalcdf is used to ...
...find an area/probability under a normal curve.
5
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invNorm is used to...
...find a location associated with a normal distribution.
6
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Probabilities for Discrete Random Variables can be represented with a ...
...a discrete probability distribution aka x / P(x) chart.
7
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Probabilities for Continuous Random Variables can be represented with...
...a density curve aka a graph
8
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binompdf is used to ...
...find the binomial probability for one exact value.
9
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binomcdf is used to ...
...add up binomial probabilities.
10
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The expected value is the same as the...
...mean.
11
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In a "fair game" the expected payout...
...should be equal to the cost of the game.
12
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A binomial probability distribution always starts with 0, while a geometric probability distribution always starts with...
...1
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When combining (adding or subtracting) independent means...
...just add or subtract.
14
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When combining (adding or subtracting) independent standard deviations...
...convert to variances, then always add, then square root to convert back to standard deviations.
