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Alcorn AP Stats Final Review Flashcards | StudBud
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Alcorn AP Stats Final Review
Alcorn AP Stats Final Review
40 terms
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#apstats #math #statistics #apstatistics
Flashcards
40 cards
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Practice quiz
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Questions
40
Answers
1
two sections of a class too the same quiz
84.3
85.7
85
2
z scores , normal parker
has a 2.5 standard deviation
is 2.5 points above class
is 2.5 standard deviations above the class
3
which of the following data summaries are changed by adding a constant to each
the mean and median
the standard deviation
the mean and median
4
a professor kept records on grades
dot plot
box plot
pie chart
5
Researchers studying growth patterns of children..The corr. between fathers and sons heights is
near +0.7
exactly +1.0
near -1.0
near 0
6
Fair Flip
It cannot be determined
less than 50
Greater that 50
50%
7
Which statemnet is about influential points is true
removal and data
possible models
none
8
your stats teacher
your stats teacher 3rd - none of these
none of these
you got a 75%
9
Company sponsoring internet wants to collect data. Which is the best way to collect the data
Observational Study
Sample Survey
Experiment
Census
10
Basketball 705 free throw
ignore repeats is wrong
Ignore repeats is wrong
( 0,1,2 represet missing count how many in 3-9
11
January Youth Survey 2005
1&2
1
3
1,2,3
12
circumference and trees h_-1.2+1.4
93
19
5
13
National Telecommunications 50.5
50.5
6.5
93.5
12.6
14
correlation family income
families tend to
In general the higher
the line of best fit
15
residuals are
variation explained by model
the difference between observed responses
non of these
16
Which is true
the higher the correlation
none
Radom scatter
17
two variable high correlation
outlier
lurking variable
leverage
18
Medical Researcher
if you loosee 6 pound
if a positive residual
the correlation is .33
19
Auto insurance crash test
equal
.90 standard deviation
.6
1.5
20
r2=0.72 regression analusis
on average 72 pecent
The model can predict
on average companies spend 72%
21
Placesbo
Blocking
Sampling
blinding
Control
22
consumer group with hdtvs
.7
70
700
7
23
All but one of these statements contain a mistake. Which could be true
Corr. between a football player's weight and position is .54
Corr. between car length & fuel efficiency .71 mpg
Corr. of 0.63 between gender and political party
Corr. between fertilizer used yield of beans is 4.2
24
the advantage of a stem and leaf display
preseves the individual data values
none of these
satisfies the area principle
25
National Telecommunication 56.5%
82.0
56.5
18.0
91.8
26
Scatterplots
Not straight down
not right arrow
Looks like youre going up a kill
not upside down u
27
Chemistry interesting class
non repsponse
none
voluntary
undercoverage
28
The visual histogram is symettric
Visual histogram is symetric
it is symetric
the median and iqr
29
Researcher and shampoo
three factor
two factor
One factor
30
five number summary display credit hour
none of these
there is no outliers
there is at least one outlier
31
Dogs with thyroids
prospective study
retrospective study
survey
Random
32
if point on scatterplot is removed
both will increase
both will decrease
b decreases r increases
33
Which of the following not require expirimental
Random
blocking
all expiremtnal
control
34
SAT scores and money
3.00
.037
6.25
13.02
35
school administration - quantative
Grade point average
class
Whether they took sat
36
least squares regression
None of these
Curved is better
the model is appropriate
37
Local School District ADD
No cant guarantee
NO cant gurantee
yes random
Yes because of 250 students
38
which is a normal model
all of these
scores on an easy test
weights of elephants ( so cute)
39
correlation between x&y
cannot be determind
.35
.70
.90
40
Double Blinding
P& E dont know what treatment group
No one Knows is wrong
No one knows is wrong
