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Duplicate of Probability Distribution Flashcards | StudBud
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Duplicate of Probability Distribution
Duplicate of Probability Distribution
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Statistics Probability Distributions
Flashcards
20 cards
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Questions
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Answers
1
Is the following variable discrete or continuous? The cost of your last takeaways purchase.
Continuous
Discrete
2
If I want to find the probability of getting at most 2 cars, what formula would I use?
P(x>2)
P(x≥2)
P(x≤2)
P(x<2)
3
Data that is measured is called
Continuous
Discrete
4
Data that is counted is called
Continuous
Discrete
5
Given a random variable X between 0 and 3, if P(0) = .2, P(1) = .1, P(2)= .3, P(3) =?
.5
.4
.2
.6
6
Variance =
Square root of the mean
Mean squared
Standard deviation squared
square root of the standard deviation
7
Which is a condition of Normal distribution?
Random occurrence at a constant rate
Fixed number of trials
Continuous data
Symmetrical
8
If I want to find the probability of getting at least 2 cars, what formula would I use?
P(x≥2)
P(x<2)
P(x>2)
P(x=2)
9
Which distributions are for continuous data?
Binomial and Poisson
Uniform, Triangular and Normal
10
Which is a condition of Poisson distribution?
Random occurrence at a constant rate
Fixed number of trials
Continuous data
Symmetrical
11
Is the following variable discrete or continuous? Number of questions you get right.
Continuous
Discrete
12
If I want to find the probability of getting exactly 2 cars, what formula do I use?
P(x = 2)
P(x > 2)
P(x < 2)
13
P(x≥2) is the same as
1 - P(x≤2)
1 - P(x<1)
1 - P(x≤1)
1 - P(x>2)
14
Expected value is the same as the
Standard Deviation
None of the above
Mean
Varience
15
If you are finding a binomial probability of exactly equal use
BPD
BCD
16
Which is a condition of binomial distribution?
Fixed number of trials
Continuous data
Symmetrical
Random occurrence at a constant rate
17
How are you feeling about your Probability Distribution skills?
Not confident
Quite confident
A bit confident
18
Which distributions are for discrete data?
Uniform, Triangular and Normal
Binomial and Poisson
19
Is the following variable discrete or continuous? The time it takes you to answer this question
Discrete
Continuous
20
If you are finding a Poisson probability for less than 2 use
PCD
PPD