Pre-Ap Probability and Statistics
Authored by Anthony Clark
Mathematics
7th Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The probability of it raining today is 30%. What is the probability that it will NOT rain?
30%
70%
100%
0%
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Find the MAD of these numbers 25, 23, 28, 29, 27, 32, 24, 26, 22, 27
MAD=26.3
MAD=29.3
MAD=2.93
MAD=2.63
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following best describes a Type I error?
The null is true, but we mistakenly reject it.
The null is false and we reject it.
The null is false, but we fail to reject it.
The null is true but we fail to reject it.
The null is true, and we fail to reject it.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To test a claim about a mean, when the population standard deviation is unknown we use:
z procedures
Pythagorean Theorem
t procedures
np > 10 and n(1-p) > 10
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When p-value is greater than alpha we:
Accept Ho
Accept Ha
Fail to reject Ho
Reject Ho
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Margin of error equals:
Critical Value ∗ standard Error
z*
1.96
Standard Error
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What do we use to estimate unknown parameters?
Hypothesis Test
Confidence Interval
Trig Identity
Guess and check
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