Chapter 9 Multiple Choice Practice AP Stats

Quiz
•
Mathematics
•
12th Grade
•
Hard
Anthony Clark
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4.83 inches
5.18 inches
6.04 inches
8.93 inches
The standard deviation cannot be computed from the given information.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The EPA requires that the exhaust of each model of motor vehicle be tested for the level of several pollutants. The level of oxides of nitrogen (NOX) in the exhaust of one light truck model was found to vary among individual trucks according to an approximately Normal distribution with mean μ = 1.45 grams per mile driven and standard deviation σ = 0.40 gram per mile. Which of the following best estimates the proportion of light trucks of this model with NOX levels greater than 2 grams per mile?
0.0228
0.0846
0.4256
0.9154
0.9772
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is not correct about a standard Normal distribution?
The proportion of scores that satisfy 0 < z < 1.5 is 0.4332.
The proportion of scores that satisfy z < -1.0 is 0.1587
The proportion of scores that satisfy z > 2.0 is 0.0228
The proportion of scores that satisfy z < 1.5 is 0.9332
The proportion of scores that satisfy z > -3.0 is 0.9938
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jorge's score on Exam 1 in his statistics class was at the 64th percentile of the scores for all students. His score falls
between the minimum and first quartile
between the first quartile and the median
between the median and the third quartile
between the third quartile and the maximum
at the mean score for all students
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When Sam goes to a restaurant, he always tips the server $2 plus $10% of the cost of the meal. If Sam's distribution of meal costs has a mean of $9 and a standard deviation of $3, what are the mean and standard deviation of his tip distribution?
$2.90, $0.30
$2.90, $2.30
$9.00, $3.00
$11.00, $2.00
$2.00, $0.90
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Scores on the ACT college entrance exam follow a bell-shaped distribution with mean 21 and standard deviation 5. Wayne's standardized score on the ACT was -0.6. What was Wayne's actual ACT score?
3
13
16
18
24
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The weights of laboratory cockroaches follow a Normal distribution with mean 80 grams and standard deviation 2 grams. The following figure is the Normal curve for the distribution of weights. Point C on this Normal curve corresponds to
84 grams
82 grams
78 grams
76 grams
74 grams
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