stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
PROBABILITY THAT AP STAT IS MY FAVORITE CLASS=1 Flashcards | StudBud
Explore
/
PROBABILITY THAT AP STAT IS MY FAVORITE CLASS=1
PROBABILITY THAT AP STAT IS MY FAVORITE CLASS=1
15 terms
·
StudBud Administration
·
3 plays
Probability review for AP Statistics
Flashcards
15 cards
F
Practice quiz
P
Host live
L
Questions
15
Answers
1
What is the probability of having 4 children and they are all boys.
.5
.125
.25
.0625
2
What is the probability that you choose a boy given that that person chooses sports?
.625
.5
.32
none of these
3
If P(A)=.5 and P(B)=.3 what is P(A or B) if A and B are independent. (Be careful)
none of these
.5
.65
.8
4
Probability
may have been created by the devil to hurt teenagers
can not be determined exactly
is a number between 0 and 1, non-inclusive
predicts how random events behave long term
5
If 60% of seniors have a job, 35% have a car, 20% have both, how many have neither?
95%
huh?
25%
5%
6
What movie is this
Onward
The blue monsters
The magic adventure
Blue critters
7
Which of the following is false?
if events are disjoint then P(A or B) = P(A)+P(B)
The law of large numbers applies only to long term prob
If events are independent then P(B|A)=P(B)
If replacement occurs events are dependent
8
If A and B are independent then
P(A|B)=P(A)
P(A and B)=P(A)P(B)
P(B|A)=P(B)
All of these
9
What is the probability that you choose a female or someone who prefers movies?
.6
cant answer since categories are not independent.
.76
.92
10
If P(A)=.5 and P(B)=.3 what is P(A or B) if disjoint (mutually exclusive)?
.5
.3
none of these
.8
11
If events are mutually exclusive then they must be ________
independent if P(B|A)=P(B)
independent
Dependent
huh?
12
If prob. of being late to school is .08, what is prob. that you are late at least once 5 days?
.341
.32
.92
.08
13
If P(B|A)=P(B) and P(A|B)=P(A) then
A and B are disjoint
A and B are not independent or disjoint
A and B are not independent but is disjoint.
A and B are independent
14
what is probability of picking three red cards in a row out of a deck
without
replacing?
.5
.125
none of these
.117
15
P(snow)=.15; P(no heat)=.08. Pope is closed if both occur. If ind. what is P(closed Pope)
.07
.012
.23
.12