How many categorical variables and quantitative variables are there?
3 categorical, 3 quantitative.
The correlation r is a value between...
-1 and 1
Determine if this question is a valid statistical question?
How many days did the students at your school play video games last week?
Valid, the answers will vary.
What is the law of large numbers?
The law of large numbers says that if we observe more and more repetitions of any chance process, the proportion of times that a specific outcome occurs approaches its probability.
What is Ms. Gilfords first name?
Nicole
What is a median?
The midpoint of a distribution.
What does the acronym FODS stand for?
F - form
O - outliers
D - direction
S - strength
How to estimate margin of error...
SD x 2 = margin of error
What is a common myth about randomness?
The Law of Averages.
Where did Ms. Gilford go for college
Fitchburg State
A graph skewed to the right implies what for the mean and median?
Mean > Median
What is a regression line?
What is under coverage?
When some members of a population are less likely to be chosen or cannot be chosen for the sample.
What can the multiplication counting principle help to determine?
It can help determine how many ways there are to arrange a group of people, animals, or things..
What is the game Ms.Gilford would always play in class?
GRUDGEBALL
How to measure range...
range = maximum - minimum
What does r2 measure?
The percent of the variability in the response variable that is accounted for by the least-squares regression line.
What is a placebo?
A treatment that has no inactive ingredient, but is otherwise like other treatments.
What does Cc equal?
Cc = compliment of C
What is her Zodiac sign?
Aquarius
What does the acronym SOCS stand for?
S - spread
O - outliers
C - center
S - shape
What is the residual? (equation)
residual = y - ลท
Difference between an observational study and an experiment...
Observation studies have no imposed treatment, experiments impose treatments
What does U stand for in A U B?
UNION
What is her sons' FULL first name?
Octavian