Definitions
A ______ variable describes an individual by placing them into a category or group.
a.) descriptive
b.) quantitative
c.) qualitative
c.) qualitative
If I counted 35 red cars, 12, blue cars, and 43 black cars, what is the degree of the circle graph that red cars would make up?
140o
A list of company names is:
a.) nominal
b.) ordinal
c.) interval
d.) ratio
a.) nominal
What is the mode of the following data:
33, 43, 45, 61, 46, 46, 47, 34, 45, 51, 61, 52, 52, 61
61
Which of the following is the symbol for population variance:
a.) s
b.) s2
c.) σ2
d.) σ
c.) σ2
In ______ data, the data is from every individual of interest
a.) sample data
b.) population data
b.) population data
A pareto graph is most similar to which type of graph:
a.) circle graph
b.) bar graph
c.) stem and leaf plot
d.) box and whisker plot
b.) bar graph
A customer service rating from 1 to 4 ( 1=very bad, 4=very good) is:
a.) nominal
b.) ordinal
c.) interval
d.) ratio
b.) ordinal
what is the median of the following data:
22, 32, 35, 36, 44, 44, 45, 51
40
Which of the following is the symbol for sample standard deviation:
a.) s
b.) s2
c.) σ2
d.) σ
a.) s
____________ is the study of collecting, organizing, analyzing, and interpreting numerical information from data.
a.) a survey
b.) statistics
c.) a sample
b.) statistics
if we had the following data in a stem and leaf plot: 33, 33, 34, 42, 46. 33 would appear how many times on the plot?
a.) once
b.) twice
b.) twice
The temperature of a pond (°C ) is:
a.) nominal
b.) ordinal
c.) interval
d.) ratio
c.) interval
What is the mean of the following data:
23, 24, 24, 26, 27, 33
26.2 or 26
What is the population variance of the following data:
3, 4, 4, 5, 5, 6, 7, 10
4.5 or 5
A numerical measure that describes an aspect of a population is:
a.) a statistic
b.) a variable
c.) a parameter
c.) parameter
If I want to make a frequency histogram of the following data: ( 21, 23, 24, 27, 27, 52, 55, 57) with 4 classes, what would be my class width?
9
The time it takes for you to complete a test is:
a.) nominal
b.) ordinal
c.) interval
d.) ratio
d.) ratio
When finding the standard deviation of a data set this central tendency is used:
a.) median
b.) mode
c.) mean
c.) mean
What is the sample variance for the following data:
1, 1, 2, 4, 5, 6
4.6 or 5
______ is being measured/ observed while _______ is the subject of the study
a.) a variable/ an individual
b.) an individual/ a variable
a.) a variable/ an individual
What is the third quartile for a box and whisker plot with the following data:
2, 3, 3, 3, 4, 5, 5, 8
5
The time your second class starts is:
a.) nominal
b.) ordinal
c.) interval
d.) ratio
c.) interval
Which of the following measures of central tendency is used to make a box and whisker plot:
a.) mean
b.) median
c.) mode
what is the sample standard deviation of the following data:
14, 14, 15, 16, 17
1.32 or 1