
STATISTICS AND PROBABILITY 3rd Quarter Review
Authored by Hermin Austria
Mathematics
11th Grade
Used 2+ times

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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Consider the population consisting of values {2, 4, 6}. List all the possible samples of size 2 which can be drawn with replacement.
{2,4,6}
(4,2),(4,4),(4,6),(6,2),(6,4),(6,6)
{(2,2),(2,4),(2,6) ,(4,2),(4,4),(4,6)}
{(2,2),(2,4),(2,6),(4,2),(4,4),(4,6),(6,2),(6,4),(6,6)}
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which sample size will give a smaller standard error of the mean?
35
18
12
9
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do you call a variable where the information or data can take countable values?
Continuous variable
Discrete variable
Quantitative variable
Qualitative variable
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can we generate if we take the square root of variance?
Mean
Median
Probability value
Standard deviation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements best describe the expected value of a discrete random variable?
It is the simple average of all possible outcomes.
It is the geometric average of all possible outcomes.
It is the weighted average over all possible outcomes.
It is the complex average of all possible outcomes in the distribution.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
As the sample size n increases, the standard deviation of the sampling distribution __________.
A. increases
B. decreases
C. stays the same
D. nothing happened
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find P (0 ≤ Y ≤ 3)
9/10
4/5
1/2
3/10
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