Dapper Distributions
These are the three things to describe when analyzing a histogram
What are shape center and spread
When playing a carnival game your chance of winning the large prize is 0.15. If you play the game 5 times, this is the probability you win all 5
What is 0.0000759375
Define Response Variable
These are the two basic types of inference in statistics
What is a confidence interval and a hypothesis test
These are the two types of hypothesis tests in a Chi-Squared distribution
What is homogeneity and independence
Within a normal distribution with a mean of 63 and a standard deviation of 4, this is the probability that a value is greater than 68
What is 0.106
The probability that a man chooses a bow tie over a long tie for a wedding is 0.4. Out of 10 men at a wedding, this is the probability that 5 men are wearing bow ties
What is 0.2007
Define Bias
What is the likelihood that one outcome is unfairly favored over another
These are the conditions for a 1-PropZTest
What is a random sample, np and nq are both greater than 10, and the sample size is less than 10% of the whole population
These are the conditions needed for a Chi-Square GOF test
What is counted data, frequencies are collected randomly, the sample is less than 10% of the population, and expected cells are each larger than 5
A student received a score of 93 on an English test. If the mean was 84 points and the standard deviation was 4.93 points, this was this student's z-score
What is 1.826
A game is won by flipping a coin that comes up heads over 52% of the time. Would you rather flip the coin 10 or 25 times?
What is 10 times
These are the three components all experiments must have.
What is randomization, a control group, and repetition.
Define a Type I Error
What is rejecting the null that is in reality true
This is the process of finding the degrees of freedom in a Chi-Squared distribution
What is the number of columns minus 1 * the number of rows minus 1
These are the percentages for the Empirical rule
What is 68%, 95%, and 99.7%
Two dice are thrown at the same time, this is the probability of rolling one number that is the multiple of the other
What is 11/88
This is the sampling method used when surveying every other person that walks through a door
What is a systematic random sample
Define Power
The probability of rejecting the null when it is false
This is the difference between binomial data and Chi-Squared data
What is binomial data can only have two outcomes
DAILY DOUBLE!!
Because of this rule distributions of a sample mean become more and more normal as the sample population grows
What is the Central Limit Theorem
Out of 7 cards pulled from a standard deck, this is the probability of finding three of a kind
0.0211
These are two variables that create results without knowing which one caused the other
What are confounding variables
This is the value that determines how likely a sample statistic is to vary from the population parameter
What is the Margin of Error
This is the formula for Chi-Squared tests