What's the purpose of using standard deviation

All of the answers are correct.

Which of the following is NOT an example of the Binomial Process

getting a 10 then a 5 in a deck

Collection, evaluation, and interpretation of data

The average of a collection of numbers

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PLTW Engineering | POE 4.1 Statistics & Probability

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Probability/Statistics

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Questions 17

Answers

1
Pulling student names out of a hat is an example of ______________ sampling.
stratified
random
systematic
organized
2
What's the purpose of using standard deviation
To find out what numbers we can consider normal
To see how numbers relate to each other
All of the answers are correct.
To help identify outliers in a set of numbers
3
What is the probability of rolling a 4 or a 6 or a 9 on a single die?
.83
0.17
.0046
0.5
4
What is the mode of the following data set: 92, 100, 22, 92, 72, 73, 89, 92, 22
22
100
0
92
5
Which of the following is NOT an example of the Binomial Process
magic eight ball
rolling die
getting a 10 then a 5 in a deck
flipping a coin
6
Find the mean of: 12, 15, 9, 3, 4, 69
112
15
69
18.7
7
Why are histograms useful?
They help you see trends
They are useful for making inferences
All of the above
They help you analyze data
8
As the number of trails increases, relative frequency and probability will ...
Stay the same
become more equal
get further apart
frequency and probability are not related to each other
9
Which method is used to determine probability?
theoretical
empathic
procedural
objective
10
What is probability of rolling a 4 and a 5 and a 9 on a single die?
0.0046
0.50
0.17
0.83
11
Which type of statistics creates generalizations based on a sample?
Inferential
Random
Cluster
Descriptive
12
What is NOT a component of probability?
Hypothesis
Event
Experiment
Sample Space
13
What is a type of statistic?
theoretical
objective
inferential
descriptive
14
What is the probability of NOT drawing the Ace of Spades in a deck of 52 cards?
98
1.9 %
.019
.98
15
What are statistics?
Collection, evaluation, and interpretation of data
The amount of tax per unit
Collection of input and output values
Measurement of independent and interdependent selfconstruals
16
What's mean?
The highest number minus the lowest number.
The middle number of a collection numbers.
The average of a collection of numbers
The most amount of a number in a collection of numbers
17
Standard deviation is...
Fourth root of the variance.
Third root of the variance
Fifth root of the variance
Square root of the variance

PLTW Engineering | POE 4.1 Statistics & Probability Flashcards | StudBud