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Probability and Statistics Review Flashcards | StudBud
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Probability and Statistics Review
Probability and Statistics Review
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Answers
1
Which of the following is NOT a random sample?
a
d
b
c
2
What is the probability, as a decimal that at least 3 chicks from a group of six will live to be old enough to lay eggs?
0.12
0.23
0.77
0.33
3
Which spinner is P(3) the greatest?
Spinner A
Spinner B
Spinner C
4
For which spinner is
P (2)
the least?
Spinner C
Spinner A
Spinner B
5
P (blue)
1/12
1/4
1/3
5/12
6
What do we call the whole group we are interested in learning about?
a
b
c
7
What is the part to part comparison of people who like sci-fi and people who like romance?
3/4
1/2
1/5
2/3
8
What is the part to whole comparison of people who like comedy to the rest of the population?
3/4
1/4
4/5
1/5
9
Which scenario is sampling variability greater?
B
A
10
You want to learn about your family’s favorite holiday. Which of the following is a census.
b
a
11
P(red)
3/12
5/12
1/12
2/12
12
Landing on blue has an equally likely chance as landing on ________
red
yellow
blue
green
13
P ' (yellow)
1/2
1/12
1/4
11/12
14
Calculate the sample mean
8
7
5
35
15
What is the population you want to learn about?
All the students
Students placing 1st at the school Geo Bee
Students competing in the National Geo Bee
Students competing at the state Geo Bee
16
Based on the data in the table, which bag should Sal choose and why? Select your answers from the drop-down lists.
Bag D because the frequency of pulling a calculator out is greater- 40%.
Bag A because the frequency of pulling a calculator out is equal- 50%.
Bag C because the frequency of pulling a calculator out is greater- 70%.
Bag B because the frequency of pulling a calculator out is greater- 60%.
