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Statistics Midterm Review Flashcards | StudBud
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Statistics Midterm Review
Statistics Midterm Review
25 terms
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#math #satistics
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
[CH 2.] What is a class width?
Sum of lower and upper boundaries/limits then divided by 2
Range of data divided by number of classes
2
[Ch. 1] What is the definition of descriptive statistics?
Collection, organization, summation, & presentation of data
Generalizing from samples,testing, relationships,predictions
3
[Ch. 1] What are examples of a discrete variable? (May be more than one answer)
Populations
Placement/Rank
Age
Weight
4
[CH 2.] What type of chart is this?
Time Series Graph
Frequency Polygon
Ogive
Pareto Chart
5
ch3 Use the range rule of thumb and compare it to the standard deviation listed above
The estimated standard deviation is 0.530
The estimated standard deviation is 0.620
The estimated standard deviation is 0.730
The estimated standard deviation is 0.840
6
what is nCr= n!/r!(n-r)!
permutation formula
binomial formula
Central tendency formula
Combination formula
7
[CH 1.] What are examples of a qualitative variable? (May be more than one answer)
Favorite Pizza Type
Weight
Amount of people who take the train
Hair color
8
[CH 2.] What type of chart is this?
Frequency Polygon
Histogram
Ogive
Pareto Chart
9
[CH 5.] What is the probability of pulling a spade and a club from a deck of cards?
.6%
7.3%
6.3%
7%
10
A device used to list out all possibilities of a sequence of events in a systematic way.
binomial factor
Tree diagram
pascals triangle
scatter plot
11
There are 3bands, 2comediansChoose 5How many shows are possible without repeating the same show
140
120
125
119
12
An arrangement of n distinct objects in a specific order.
outflier
repetition
permutation
mutation
13
ch3There are 4 measures of central tendency (also called measures of average
Mean outlier Mode Midrange
Mean Median Mode range
Mean middle Mode midrange
midrange, mode, median, mean
14
[CH 2.] What type of distribution is this?
Ungrouped Continuous Data
Categorical
Ungrouped Frequency Distributions Discrete Data
Grouped Frequency Distributions
15
How many four-letter code words are possible with the word "pencil"? Repetitions are allowed
1296
1195
1350
1276
16
This symbol represents the sample mean
X Bar
µ
∑
ƒ
17
[CH 5.] What is the sample space of rolling a die?
6
18
56
36
18
[Ch. 1] What is the definition of a quantitative variable?
Values that can be counted. Must be integer in nature
Variables that can be placed in categories by characteristic
Values that can be between any two specific values
Variables that are numerical and can be ordered or ranked
19
[CH. 5] Probability the person is unemployed given that the person does not own a credit card.
58/83
35/58
35/83
35/50
20
Ch3 The measure of center that is the value that occurs with the greatest frequency is the
mean
mode
average
median
21
Ch3 The square of the standard deviation is called the ______.
variance
box plot
outlier
midrange
22
[CH 2.] What type of chart is this?
Ogive
Pareto Chart
Frequency Polygon
Histogram
23
[Ch. 1] What are examples of a qualitative variable? (May be more than one answer)
Gender
Age
Weight
Hair color
24
[CH 5.] What events are mutually exclusive? (May be more than one answer)
Getting a black card or a face card
Getting a heart card or a 10 card
Getting a red card or a black 3 card.
Getting a face card or a 6 card
25
[CH 5.] What is the probability of picking an ace and ace if the first card is not replaced?
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