unit 1
What are the two data types?
(1.1)
What is quantitative, what is categorical?
How do you calculate z-score?
(2.1)
What is (x-mean)/Standard Deviation?
What is a scatter plot?
(3.2)
What is a plot used to determine how close to the estimated line each point is?
What is a sample?
(4.3)
What is a part of the population that is meant to show the data of the population?
In what way do you assume normality using Central Limit Theorem?
(5.3)
What is greater than or equal to 30 samples?
What is something that pie charts are better at displaying than bar charts?
(1.2)
What is proportions?
What is it called when the mean is affected one individual point?
(2.2)
What is an influential point?
What is correlation when talking about scatter plots?
(3.3)
What is a coincidental relationship that does not imply causation?
What is the difference between a single-blind and a double blind experiment?
(4.5)
What is in a double-blind neither the subjects nor the administers know which group is the control and which isn't?
What is a normal distribution?
(5.2)
What is a normal distribution describes a symmetrical plot of data around its mean value, where the width of the curve is defined by the standard deviation.
What is the difference between a bar chart and a histogram?
(1.5)
What is grouped vs. pointed data?
How is the Y value of a density curve determined?
(2.3)
How is one over the amount of x values?
(i.e, 1/4)
What piece of information does a segmented bar chart help you determine?
(3.1)
What is proportions?
Are random samples a good way of determining correct data from a population?
(4.4)
What is yes because they are random it eliminates any bias or human error when determining who or what will be a part of the sample?
What is the difference between Central Limit Theorem and Large Counts Condition?
(5.3)
What is for C.L.T (means) the sample must be greater than 30 and for L.C.C (proportions) both equations must be greater than 10?
How do you determine an outlier?
(1.8)
1.5*IQR
(2.4)
What is 68%
What is a regression line?
(3.5)
What is a line that models how a response variable changes as the explanatory variable changes?
What is a bad thing to do while taking a sample?
(4.1)
What is only taking information from a small specific group?
What is a reason for different results when taking the same size random sample out of the same population?
What is different subjects undergoing the tests?
How to find Q1 and Q3?
(1.7)
What is the median of the median?
What is the z-score of a dot plot with all the dots perfectly aliened?
(2.6)
What is 1?
What is a least-squares model used for?
(3.7)
What is the variation from the predicted line of regression?
What is the difference between a observational study and an experiment?
(4.1)
What is deliberately imposed treatments or circumstances onto those in an experiment, where as an observational study is just recording data that is readily available?
What are biased and unbiased estimators?
(5.4)
What is a biased estimator is one that deviates from the true population value; An unbiased estimator is one that does not deviate from the true population parameter?