Values that are highly unusual(far away)

What is the standard deviation

A measure of variation scores about the mean

What does a skewed mean ?

That the data is not symmetric (extends more to one side )

How do you find the range?

You subtract the lowest number from the highest number

A normal model described scores in a class. Max has a z-score of +2.5. This means that Max

is 2.5 standard deviations above average for the class

studbud

Describing ,Exploring and Comparing Data

14 termsStudBud Administration33 plays

A math Quiz to introduce Chapter 2 of Intro to Stats

Flashcards14 cardsFPractice quizPHost liveL

Questions 14

Answers

1
What is an outlier
Values that are highly unusual(far away)
Value close to the mean
Values that are within one standard deviation
Values that are close together
2
What is the standard deviation
A measure of the population
A measure of variation scores about the mean
A measure of z scores
A measure of the range
3
What is the maximum of Seattle?
69.5
59
74
90
4
Descriptive statistics use data from a
known population
frequency
sample
boundary
5
What does a skewed mean ?
That the data is less accurate (lots of variance )
That the data is not symmetric (extends more to one side )
6
Inferential statistics uses data from a
sample
known population
boundary
frequency
7
How do you find the range?
You add the lowest number to the highest number
It is the same as the mean
You add the mean to the highest number
You subtract the lowest number from the highest number
8
What distribution type is this graph?
Bell shaped
Heavy tailed bar graph
Symmetric
Light tail
9
A normal model described scores in a class. Max has a z-score of +2.5. This means that Max
is 2.5 standard deviations above average for the class
has a standard deviation of 2.5
is 2.5 points above average for the class
has a score that is 2.5 times the average for the class
10
What's the mean of the following numbers? 66,35,28,75
66
45
51
54
11
What types of graphs are qualitative?
Pareto charts, pie charts
stem and leaf plots, pie charts
histograms, dot plots
12
What are the lower class limits?
0,20,40,60,80
40,40,60,80,100
3,0,4,14
13
The average age of upperclassmen at SJHHS are 17 years old
inferential
descriptive
14
Administrators collect data on students at the school. Which of the following is quantitative?
Whether the student has taken the SAT
Class (freshmen, soph.,junior, senior)
GPA
Whether the students are in a math class

Describing ,Exploring and Comparing Data Flashcards | StudBud