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Stats Parts 1-6 Review Flashcards | StudBud
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Stats Parts 1-6 Review
Stats Parts 1-6 Review
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AP statistics Describing data Probability
Flashcards
14 cards
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Practice quiz
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Questions
14
Answers
1
Events can be disjoint and independent.
True
False
2
sqrt y = 7.6 - 0.4x Predict y for x=9
4
11.5
16
2
3
y-hat = 5x + 0.7 Data point for age 6 has resid -1.4. What is score for age 6?
-4.6
32.1
29.3
4.6
4
Collecting data from all persons in a population.
Cluster
Census
Stratum
Block
5
Which of following gives us the value to decide on outliers?
Q2 + (Q3 - Q1)
Q2 + 1.5(Q3 - Q1)
Q3 + 1.5(Q3 - Q1)
Q3 + 1.5(Q2 - Q1)
6
People have 12% chance to flip bottle and land it. Find P(no more than 2 out of 6 land it).
0.610
0.156
0.118
0.974
7
If you pick randomly, what is the chance you get this right?
25%
33%
50%
25%
8
A set of temps is almost normal with mean of 60 and SD of 5. Find the IQR.
6.7
7.5
10
13.4
9
Which is useful for deciding on linear model? I. scatt plot II. Resid plot III. Corr Coeff (r)
I and II
I
ALL 3
II
10
2 factor experiment trying 3 oven temps and 4 diff cook times. How many treatments?
24
20
14
12
11
Scores on a test were almost normal. Amy got a 31 and was 98th percentile. Mean=20 SD was?
5.6
6.7
4.7
5.4
12
We use blocking in experiments to:
Allow cause-effect conclusion
Reduce variability due to diff in blocks
Allows us to generalize results to larger group
Ensure treatments are assigned randomly
13
Jake from state farm wears what color pants?
He wears blue
Brown. All day, ery day...
He wears black
He wears khakis
14
Two classes. n=32 mean = 80.4 and n=24 mean=76.3 What is overall mean together?
78.643
76.675
77.28
76.35