final
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What do you call the numerical value that seperates the bottom 25% from the top 75% in a sample? | First quartile
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| When building class boundaries first divide range by number of classes then | =16then cwis 17. Begin w first value add 17 so on
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| When copying answers over to bar | always check again
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| Z score is | x minus mean divided by standard deviation
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| Assume binomial probability distribution, write the TI command that we can use to find P(x<a) | binomcdf(n, p, a)
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| Assume standard normal probability distribution find P(z=2.5) | P(z=2.5)= 0. The only time a single point will have value is for binomialpdf
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| Name the TI command that we can use to find Pk when working with standard normal probability distribution | invnorm(k, µ, σ)
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| If P(A)=0.6, what are the odds in favor of even A to occur? | .6/.4 leave in fraction form 3/2
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| P(A or B) | P(A) + P(B) – P(A and B)
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| When you are given .2% what should you do? | TAKE HEED and move decimal to the left twice
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| The probability that there will be at least 45 convictions | 1- binomcdf(n,p,x) or 1-binomcdf(50, .8,44) x follows "at least"
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| Estimate the probability that ther will be at most 35 convictions | Do not subtract 1 from 35, just leave it and add .5
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| Odds must be written as… | a fraction
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| When finding probability on a tree | don’t forget to multiply every branch
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| If you are given a decimal percentage DO NOT FORGET | to move the decimal to the left
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| When drawing venn diagrams | make certain that the total n is contained in rectangle, including values not in circle
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| There is a big difference between | binomcdf and binompdf make certain to write correct calculator function
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