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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
Mrs. Ayesh took a sample of scores from a Stat quiz. What % of the scores are between 0 and 7?
70%
35%
50%
25%
2
Mrs. Ayesh asked her statistics students how many AP classes they have taken. What is the mean?
3.6
3.1
4
3
3
$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 $38,000
It must be large than $38,000
4
Which one of these should not be used to display quantitative data?
Bar Graph
Dot Plot
Scatterplot
Stemplots
5
What is the marginal distribution of females whose favorite sport is basketball?
.25
.536
.288
.188
6
You measure the age, gender, & GPA of an SRS of 1463 PC students. The # & type of variables are
3; 2 categorical & 1 quantitative
4; 2 categorical & 2 quantitative
3; 1 categorical & 2 quantitative
4; 1 categorical & 3 quantitative
7
If a distribution is skewed to the left, which of the following is true?
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.
The mean is greater than the median.
8
To make a stemplot of these scores, you would use as stems:
0 and 1
3, 10, 42, 25, and 5
0, 1, 2, 3, and 4
1 ,2, and 4
9
What are the components of SOCS?
Sample, Center, Spread, Outlier
Shape, Outlier, Center, Shape
Shape, Spread, Center, Outliers
Spread, Outlier, Center, State
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
Cannot be determined.
30
37.5
11
If a distribution is symmetrical, which of the following is true?
The mean must be less than the median.
The mean is either equal to or less than the median.
The mean must be greater than the median.
The mean and median must be equal.
12
All are properties of Standard Deviation except:
S can be < or > than 0
S measures can be used to measure spread
S=0 means there is no spread
S is not resistant
13
Which of these is not a categorical variable?
GPA
Hair Color
Zip Code Number
Gender
14
Plotted is the data from a PC AP Stat class quiz, Which of the following would be an outlier?
53
86
42
84
15
Here are the SAT math scores for a PCHS AP Stat class. The distribution of scores is...
Skewed to the left
Bell-Shaped
Uniform
Symmetric
