every set of n individuals has an equal chance

Why are you enrolled in statistics?

will be valuable in my future, I like Math

Data that approximately Normally distributed will have the following qualities except?

The normal Probability plot will not be linear

A Sampling Frame is.........

List of Individuals from which we draw our sample from

The fraction of the variation in the values of response y that is explained by the least squares regression line

square of the correlation coefficient

Is the following a binomial system?

No, the trials are not independent.

What is descriptive statistics?

Numbers that summarize data in an efficient manner.

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Stats review #2

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Questions 20

Answers

1
Simple Random Sample
Any sample selected by chance
a sample that selects equal numbers of individuals from each stratum
a sample that gives every individual the same chance to be selecred
every set of n individuals has an equal chance
2
Statistics I
(C)
(A)
(B)
(D)
3
Why are you enrolled in statistics?
heard it was an easy class
will be valuable in my future
I didn't have another choice
I like Math
4
Statistics can help you to argue a claim
True
False
5
Data that approximately Normally distributed will have the following qualities except?
The normal Probability plot will not be linear
the data will be roughly symmetrical
The mean and Median will be approximately equal
The data follows the 68-95-99.7 rule
6
A Kaiser Permanente researcher surveys all cancer patients in 2 random hospitals
Cluster Sample
Stratisfied sample
SRS
Convenience Sample
7
A Sampling Frame is.........
The size of the sample
The total population
List of Individuals from which we draw our sample from
Everyone in the school
8
statistics and probability
4
3
1
2
9
Median
(B)
(D)
(A)
(C)
10
The fraction of the variation in the values of response y that is explained by the least squares regression line
correlation coefficient
intercept of the least squares regression line
square of the correlation coefficient
slope of the least squares regression line
11
By looking at the equation of the least squares regression line, you can tell that the correlation is....
Can't Tell
Weak and negative
Strong and Negative
Strong and positive
12
The sum of all probabilities equal to:
(d) 2
(b) 1
(c) 3
(a)4
13
A Ford researcher has separated all registered cars into compact, mid-size and full size. She surveyed 100 from each.
SRS
Cluster Sample
Stratisfied sample
Voluntary response
14
Is the following a binomial system?
No, there is not a fixed number of trials
No, the trials are not independent.
No, there is not only 2 outcomes.
Yes, it is a binomial system.
15
What is descriptive statistics?
The score that occurs most frequently in a distribution.
The average of the distribution of scores for a variable.
Numbers that summarize data in an efficient manner.
Mode
16
Statistics
True statements.
A comparison between two things, ideas, or situations.
Numbers presented as facts.
When you use another person’s words or ideas to support your claims.
17
A score's percentile is a measure of
Spread
Center
Position
Skew
18
Statistics and Probability
1
2
4
3
19
What is Statistics?
The study of data
The Relationship of lengths and angles of triangles
A system involving two variables of an equation
A function involving a parabola
20
When many people respond to the dummy treatment it is called:
confounding
Comparison
The Placebo effect
lurking variable

Stats review #2 Flashcards | StudBud