EBTM 350 EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED
he term ______ location relates to the way numerical data tend to cluster around
some middle or central value.
central
We refer to the population mean as a _________and the sample mean as a
_________.
parameter and statistic
The 25th percentile is also referred to as the ____ quartile.
first
The 50th percentile is referred to as the ____ quartile.
second
and the 75th percentile is referred to as the _____ quartile.
third
We can use numerical descriptive measures to extract meaningful information
from data. Which measure gauges the underlying variability of the data?
Measures of dispersion
Which is not one of the three most widely used measures of central location?
Range
There are several measures of dispersion that gauge the variability of a data set.
Select which measure below is not useful for measuring dispersion.
, Use the mean
The only thing that differs between a population mean and a sample mean is the
notation. The population mean is referred to as:
μ, where μ is the Greek letter mu.
Which is not true of the use of the range as a measure of dispersion?
Focuses solely on the middle observations
In order to calculate the ______ of a variable, we simply add up all the
observations and divide by the number of observations.
Mean
The interquartile range (IQR) is the difference between the third quartile and the
first quartile, or, equivalently, IQR = Q3 − Q1.Which of the following is true of the
interquartile range?
It is the range of the middle 50% of the variable
A percentile is technically a measure of location; however, it is also used as a
measure of relative position because it is so easy to interpret. if you know that
the raw score corresponds to the 75th percentile, then you know that
approximately how many students had scores lower than your score?
75%
Which of the following are common measures of shape?
Multiple select question.
MAD or the Mean absolute deviation
Kurtosis coefficient
Skewness coefficient
COMPLETE SOLUTIONS VERIFIED
he term ______ location relates to the way numerical data tend to cluster around
some middle or central value.
central
We refer to the population mean as a _________and the sample mean as a
_________.
parameter and statistic
The 25th percentile is also referred to as the ____ quartile.
first
The 50th percentile is referred to as the ____ quartile.
second
and the 75th percentile is referred to as the _____ quartile.
third
We can use numerical descriptive measures to extract meaningful information
from data. Which measure gauges the underlying variability of the data?
Measures of dispersion
Which is not one of the three most widely used measures of central location?
Range
There are several measures of dispersion that gauge the variability of a data set.
Select which measure below is not useful for measuring dispersion.
, Use the mean
The only thing that differs between a population mean and a sample mean is the
notation. The population mean is referred to as:
μ, where μ is the Greek letter mu.
Which is not true of the use of the range as a measure of dispersion?
Focuses solely on the middle observations
In order to calculate the ______ of a variable, we simply add up all the
observations and divide by the number of observations.
Mean
The interquartile range (IQR) is the difference between the third quartile and the
first quartile, or, equivalently, IQR = Q3 − Q1.Which of the following is true of the
interquartile range?
It is the range of the middle 50% of the variable
A percentile is technically a measure of location; however, it is also used as a
measure of relative position because it is so easy to interpret. if you know that
the raw score corresponds to the 75th percentile, then you know that
approximately how many students had scores lower than your score?
75%
Which of the following are common measures of shape?
Multiple select question.
MAD or the Mean absolute deviation
Kurtosis coefficient
Skewness coefficient
