HS 4510 Self Quiz || with Error-free Answers.

HS 4510 Self Quiz || with Error-free Answers.


Relating to relative frequencies, choose best answer:
Select one:
a.
The sum of relative frequencies is 100%
b.
A relative frequency describes one element relative to all
c.
Categorical data can be described in relative frequencies
d.
All the above correct answers d. All the above


True or False: observations of a random variable in a random experiment is termed as trial.
Select one:
True
False correct answers true


If you are calculating difference in means pre and post an intervention, you are gathering:
Select one:
a.
nominal data
b.
ratio data
c.
interval data
d.

,ordinal data correct answers c. interval data


You are given the following sequence: K = {0, -2, -3, 6, 6, 0, 5}.
Calculate the following:




Select one:
a.
104
b.
114
c.
124
d.
108 correct answers a. 104


If you are comparing number of births to the number of pregnancies in a sample of women, you
will be gathering:
Select one:
a.
nominal data
b.
ratio data
c.

,interval data
d.
ordinal data correct answers b. ratio data


True or False: You will be working with nominal data if you will be comparing blood type
groups.
Select one:
True
False correct answers true


Census data:
Select one:
a.
are not representative of the overall general population
b.
include all members of a population of interest
c.
are similar to sample data
d.
include only interval or ratio scale variables correct answers b. include all members of a
population of interest


State if true or false:
√[(x2)/y] = x/√y
Select one:
True
False correct answers true

, Which of the following graph(s) will best display a variable with a nominal scale?
Select one:
a.
Scatterplot
b.
Histogram
c.
Pie graph
d.
Bar graph
e.
Bar and Pie graphs correct answers e. Bar and Pie graphs


For the following sequences:
X {1, 2, 3}
Y{3, 4, 5}
Calculate the following: √(2Σxy)
Select the correct answer.
Select one:
a.
12.0
b.
5.71
c.
7.21
d.
12.45 correct answers c. 7.21