Vocab 1
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What do you know?
Throwback
BONUS
100
To artificially re-create the random process a large number of times.
What is simulation?
100
What is the probability of landing tails? (flipping a coin once)
.50
100
what is the probability of having a boy and girl child?
What is .5
100
what is the formula for calculating z-score?
What is (observational value-mean)/(standard deviation)
100
What is the probability of flipping tails on a coin and then flipping it again, and then a heads on the third time?
.125
200
Refers to the long-run average result of the process.
What is expected value of a numerical process?
200
What is the probability of choosing a red card randomly in a standard deck of playing cards?
.50
200
what is another name for long-run proportion
What is relative frequency
200
what is a key difference between observational studies and experiments?
What is no conclusions can be drawn from observational studies, while experiments can lead to general conclusions
200
3 quarters 1999 1978 2010 What is the probability that a randomly chosen quarter from this set is greater than the mean of the 3 quarters?
Mean=1995.66 1999 and 2010 2/3 .6666
300
The observed proportion of times that the event occurs.
What is an empirical estimate?
300
What is the probability of rolling a 3 on a six sided dice twice in a row?
.0277777778
300
how do you find the expected value?
What is outcome1 x probability of outcome1 + outcome2 + probability of outcome2 + ....
300
in which phenomenon is it shown that aggregate proportions can reverse the direction of the relationship seen in the individual pieces
What is simpsons paradox
300
If you test positive for AIDS, do you probably have AIDS?
What is NOPE! only 6.22% of positive results are actually people with AIDS!
400
The listing of possible values of a numerical random variable, along with the probabilities for those values.
What is probability distribution?
400
Bag of 10 M&M's, 2 pieces each red, brown, yellow, green, blue. What is the probability of pulling out two red M&M's in a row?
.0222222222
400
what is the difference between sample size and number of samples?
What is sample size is number of observational units in each sample, and number of samples is how many samples are generated in the simulation
400
what does the acronym MAD stand for?
What is mean absolute deviation?
400
what do expected values tell you about the short run?
What is NOTHING!!!! they may not be likely or even possible to occur.
500
A probability of .05 or less
What is a rare outcome?
500
Julie 22 John 27 Joe 13 Jim 40 Susan 15 Choose one person randomly, what is the probability that the age is less than the mean age?
Mean=23.4 Julie, Joe, Susan 3/5 ANSWER= .6
500
what happens to proportions as a sample size increases?
What is the sample proportions become closer to the population proportions
500
what is anecdotal evidence?
What is results from situations that come to mind easily & are of little value in scientific research
500
what is midrange?
What is average of min and max values
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