Mild= Quartile One - 1.5(IQR) and Quartile 3 + 1.5(IQR)
Extreme= Quartile One - 3(IQR) and Quartile 3 + 3(IQR)
100
How do you find residuals?
Subtract each predicted value from the corresponding y value
100
How do you find the probability of an event?
P(E)= (# of times E happens)/ (# of trials)
100
What is a discrete variable?
A random variable thats set of possible values is a collection of isolated points on the number line
100
Standard Deviation of sampling distribution equals?
SD / SqrRt(n)
200
If there is a normal curve.. what are the percent of observations that are within 1,2, and 3 standard deviations
1 SD= 68% of observations
2 SD's= 95% of observations
3 SD's= 99.7% of observations
200
What does the value of r have to be between
Between 1 and -1
200
Probability of event E not happening?
P(not E) = 1-P(E)
200
Critical Value is?
A number that captures a specified tail area or central area
200
True or Flase... Is any sample size normal when the population is normal?
TRUE
300
What is the equation for z score
(Value - Mean)/ Standard Deviation
300
What does the coefficient of determination tell?
The proportion of variation in y that can be explained by the LSRL
300
What is the probability that you get a 5 on the AP?
Answer = 1 or 100% (if you listened to Kowalsky in class)
Otherwise its .20
300
Mean value and SD for proportions equals...
Mean= n*p
SD= SqrRt(n*p(1-p))
300
What is the ten percent rule for the samplesize?
n*p is less than or equal to 10% of the population
n(1-p) is less than or equal to 10% of the population
400
What does the 5 number summary include?
Minimum, maximum, lower quartile, upper quartile, median
400
Give 2 examples of transformations for the x or y values
Square the values, take the log, reciprocal, cube, square root, cube root
400
Events A and B are independent if...
P(A and B) = P(A) ยท P(B)
400
How do you find the expected value?
Take the sum of all the products of the outcomes and multiply them by their respective probabilities.
400
The Central Limit Theorem can be applied when?
n is greater than or equal to 30
500
What information do boxplots tell you?
Tells you the spread, center, how skewed, and what outliers are in the data set
500
Do you want your residual scatterplot to be random? Why or why not?
Yes sir because when the residual scatterplot is random it indicates a good fit for a linear model
500
What does Disjoint and sample space mean?
Disjoint- Events that dont have common outcomes
Sample Space- All possible outcomes from a chance experiment
500
Properties of Binom Experiment
-Fixed # of observations
-Each trial can only result in one of two mutually exclusive outcomes (success or failure)
-Outcomes of different trials are independent
-The prob. that a trials results in a success is the same for each trial
500
What does RITLN mean?
R- random
I- Independent
T- Ten Percent
L- Large Enough
N- Normal
(probably not in the chapter but learn this)