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Duplicate of Chapter 1
Duplicate of Chapter 1
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AP Statistics Chapter 1
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
To make a stemplot of these scores, you would use as stems:
3, 10, 42, 25, and 5
1 ,2, and 4
0, 1, 2, 3, and 4
0 and 1
2
Here are the SAT math scores for a PCHS AP Stat class. The distribution of scores is...
Bell-Shaped
Symmetric
Uniform
Skewed to the left
3
The balance point of a density curve is
The mean
The Median
Always equal to 1
The mode
4
If a distribution is symmetrical, which of the following is true?
The mean and median must be equal.
The mean is either equal to or less than the median.
The mean must be greater than the median.
The mean must be less than the median.
5
Which one of these should not be used to display quantitative data?
Bar Graph
Scatterplot
Stemplots
Dot Plot
6
Which of these is not a categorical variable?
GPA
Zip Code Number
Hair Color
Gender
7
$35000 is the mean salary for women; $41000 for men. What is true for the mean of all workers?
It could be any # between $35,000 and $41,000
It must be larger than the median salary.
It must be large than $38,000
It must be $38,000
8
If a distribution is skewed to the left, which of the following is true?
The mean is greater than the median.
The mean is either less than or equal to the median.
The mean and median are equal.
The mean must be less than the median.
9
You measure the age, gender, & GPA of an SRS of 1463 PC students. The # & type of variables are
4; 2 categorical & 2 quantitative
3; 2 categorical & 1 quantitative
4; 1 categorical & 3 quantitative
3; 1 categorical & 2 quantitative
10
The mean of 4 men is 30 years. A 55-year-old enters the room. What is the mean age of the 5 men
35
37.5
Cannot be determined.
30
11
The point that divides a density curve in half is
always equal to 1
mode
mean
median
12
Mrs. Ayesh asked her statistics students how many AP classes they have taken. What is the mean?
3.1
3
4
3.6
13
What is the marginal distribution of females whose favorite sport is basketball?
.288
.536
.188
.25
14
What are the components of SOCS?
Shape, Outlier, Center, Shape
Shape, Spread, Center, Outliers
Sample, Center, Spread, Outlier
Spread, Outlier, Center, State
15
All are properties of Standard Deviation except:
SD=0 means there is no spread
SD measures can be used to measure spread
SD can be < or > than 0
SD is not resistant
