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Sampling & Experiments
Interpretations
Important Things You May Have Forgotten
Probability Rules!
Calculator Commands
100

JEOPARDY: In 1891 the first game of this sport was played in Springfield, Massachusetts

What is basketball?

100

mu

What is the population mean?
100
How to identify outliers for univariate data
What is Q1 - 1.5(IQR) and Q3 + 1.5(IQR)?
100
The rule for finding the probability of rolling a fair die three times and getting three fours.
What is P(rolling three 4s) = P(4)*P(4)*P(4) = P(4)^3?
100

The correlation coefficient between L1 and L2

What is STAT -> CALC -> LinReg(a+bx) L1, L2?

200
A common form of blocking for comparing just two treatments.
What is matched pairs?
200

p-hat

What is the sample proportion?

200
The expected value of a discrete random variable
What is the mean of the random variable found by summing the products of the values of x and their repsective probabilities?
200

JEOPARDY: Early Spanish settlers gave this South American city a name meaning "fair winds"

What is Buenos Aires?

200

The proportion of values between 58 and 70 in a dataset that is approx normal with a mean of 67 and a standard deviation of 9.

What is DIST -> normalcdf( lower = 58, upper = 70, mean = 67, sd = 9)?

300
When some groups in the population are left out of the process of choosing a sample
What is undercoverage?
300
A z-score of -3.45
What is "The data value is 3.45 standard deviations below the mean"?
300

JEOPARDY! Taron Egerton played Elton John in this 2019 musical fantasy

What is Rocketman?

300
The rule for finding the probability of a female given that they are an AP Stats student.
What is P(Female|AP Stats Student) = P(Female AP Stats Student)/P(AP Stats Student)
300

Ten random intergers from 1 to 100.

What is MATH -> PRB -> RantInt( min:1, max:100, number:10)

400
The population is divided into groups. Some groups are randomly selected and all individuals in the chosen groups are sampled.
What is cluster sampling?
400
The slope in the least-square regression line, y = 15 - 4x
What is "For every one unit increase in the explanatory variable, there is on average a 4 unit decrease in the reponse variable"?
400
The standard deviation of the difference between two random variables.
What is the square root of the sum of the variances of the two random variables?
400
The rule for finding the probability of obtaining the first success on the 5th trial.
What is P(X=5) = p(1-p)^4
400

JEOPARDY: Sonar is one of these words formed from the first letters of a series of words

What is an acronym?

500
The effects of two variables on the response cannot be distinguished from each other.
What is confounding?
500

JEOPARDY: In Carlsbad, Calif. & Winter Haven, Florida, you can see mini versions of iconic buildings & landmarks made out of these toys

What are LEGOs?

500
The mean and standard deviation of the sampling distribution of sample means
What is the mean of the sampling distribution of sample means is equal to the population mean and the standard deviation of the sampling distribution of sample means is equal to the population standard deviation divided by the square root of the sample size?
500
The rule for finding 10 successes in 15 trials.
What is P(X=10) = (15 C 10)*p^10*(1-p)^5
500

Adjusting the bin width on a histogram

What is WINDOW -> Xscl = binwidth?