Displaying Data
Samples and Experiments
Basic Probability
Harder Probability
100
What is this shape?
Skewed Right
100
What is the term used to describe an experiment when both the subject and experimenter do not know which group the subject is assigned too?
Double Blind
100
What is the probabilty of AC if P(A)=0.6
0.4
100
What is the P(full time student|Two to Three times)?
25/30=5/6=0.833
200
What measure of center would be best to describe the following distribution?
Median
200
A survey was conducted in a local elementary school and every 5th child was selected from an alphabetical list after a random starting point was chosen. What type of survey was conducted?
Systematic Random
200
In a normal distribution, what is the probability of being within 1 standard deviation of the mean in both directions?
68%
200
The probability that a hockey player will score a goal is 1/5. Find the probability that the first shot she makes will be the 3rd shot taken.
geometpdf(p=1/5,x=3)=
300
Find the new mean and standard deviation if I multiply by 3 then subtract 2 to all the data points with
mu=8 and sigma=4
mu=22 and sigma=12
300
Name the 4 principles of experimental design
Random
Control
Blocking
Replication
300
Find the expected value of the table below
-0.1
300
Name the 4 conditions for a distribution to be binomial
Having 2 outcomes
Independent trials
Fixed N
Probability does not change
400
If the mean of a distribution is 8, the median is 9 and the mode is 10, what shape does the distribution have?
skewed left
400
An experiment was conducted where 1000 fish were randomly placed into 10 tanks. Each tank was then randomly assigned to receive a vitamin supplement or not to see how the fish would thrive. What are the experimental units?
10 tanks
400
What is the probability you failed chemistry given you failed physics?
19/25
400
Name the two rules to prove independence.
P(A)*P(B)=P(A and B) OR
P(A|B)=P(A)
500
What are the two formulas to find outliers?
Q1-1.5(Q3-Q1)
Q3+1.5(Q3-Q1)
500
Name the 3 types of experimental Designs
Completely Random
Blocked
Matched Pairs
500
In a standard deck of cards, what is the probability of drawing 3 hearts without replacement? (simplification is NOT required)
13/52*12/51*11*50 =11/850 = 0.0129
500
If
\sigma_x=3 and \sigma_y=4,
what is the value of
\sigma_{x+y}?
5