Which of the following is least likely to have a nearly Normal distribution?

Family incomes of all students taking a college math class

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AP Statistics Chapter 2 Review

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Questions 10

Answers

1
Define "decile."
Top 10% of Data
Upper and Lower 25% of Data
Middle 50% of Data
Upper and Lower 10% of Data
2
A rectangular density curve has a length of 6 feet. What is its height?
1/3 of a foot
1/12 of a foot
1/6 of a foot
2 feet
3
Look at the picture drawn on the board. What does each vertical line represent?
A: Mean B: Median
A: Mode B: Mean
A: Median B: Mean
A: My love for stats class B: My love for other classes
4
Mean:336 SD:3 Use the 68-95-99.7 rule. What range of values does 99.7% of the values fall into?
333-339
330-342
327-345
335-337
5
Ellie scores a 680 on the SAT Math Test. The mean score is 500 with an SD of 100. Find z-score.
0.9641
0.0359
-1.8
1.8
6
Mean: 43.70ft Median: 42.00ft SD: 12.50ft Q1: 35.50ft Q3: 48.00ft Convert to yards.
Mean: 131.10 SD: 12.5 Q3: 48
Mean: 14.57 SD: 4.17 Q1: 11.83
Mean: 14.57 Median: 14 Q3: 18
Median: 21 SD: 12.5 Q1: 11.83
7
Assume normality. Mean: 266 SD: 16 What percent lies between 240 and 270?
Approximately 54.7%
Approximately 35.00%
Approximately 65.00%
Approximately 45.3%
8
Find the number z such that 35% of all observations from a distribution are greater than z.
0.3483
0.39
-0.39
0.6517
9
If we standardize every observation in a distribution, what is the resulting mean and SD?
I don't recall...
Mean: 0 SD: 1
Mean: 1 SD: 1
Mean: 1 SD: 0
10
Which of the following is least likely to have a nearly Normal distribution?
SAT math scores of all students taking a college math class
IQ scores of all students taking a college math class
Family incomes of all students taking a college math class
Heights of all students taking a college math class

AP Statistics Chapter 2 Review Flashcards | StudBud