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Basic Probabilities
Test Description: Just the fundamentals: a pretest
Instructions: Answer all questions to get your test result.
1) What is an example of a conditional probability?
A
Drawing a second card from a deck without haveing replaced the first draw.
B
Ordering a meal from a printed menu.
C
Winning the second game of a double header.
D
Rolling a pair of dice the third time.
2) What is an example of a mutually exclusive event?
A
Flipping a coin and getting heads or tails.
B
Passing a drivers license test.
C
Winning the second game of a double header.
D
Using a credit card to buy clothes.
3) Which of these is a valid subject for an observational study?
A
Selecting an appropriate cold remedy.
B
Which of three cold remedies works best?
C
How many cold symptoms are there?
D
None of the above.
4) Which of the below is a threshold sample size?
A
2000
B
4
C
30
D
1
5) Does sample size affect the margin of error?
A
no
B
yes
6) What distinguishes an observational study from an experiment?
A
Heredity
B
Biology
C
Statistics
D
Control group
7) Which way is up on a compas?
A
west
B
north
C
south
D
east
8) In the news, where does one see margin of error?
A
Footnotes
B
Captions
C
Polling results
D
Headlines
9) Which Italian mathemetition gave us the zero?
A
Galileo
B
Fibonacci
C
Marconi
D
Columbus
10) What is the visual image associated with Normal Distribution?
A
Hyperbola
B
Cosine
C
Bell curve
D
Parabola
*select an answer for all questions
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