What are measures of centary tendency ? When do we use them? How do we caculate
ID: 3043810 • Letter: W
Question
What are measures of centary tendency?
When do we use them?
How do we caculate them?
How do we report/interpret them?
What is the mode?
When do we use it?
How do we calcualate it?
How do we report/interpret it?
What is the median?
When do we use it?
How do we calcualate it?
How do we report/interpret it?
What is the mean?
When do we use it?
How do we calcualate it?
How do we report/interpret it?
Define measures of ccentral tendency? ( HINT: the definitiom, not the types of measures of centeral tendency)
Define the three types of measures of centeral tendency and in what situations we used them.
Create one multiple choice question and one short answer question that you would include on a statistics exam
Explanation / Answer
measures of centary tendency?
mean ,median and mode
What is the mode?
mode is the most common value in a dataset
Ex
2,3,5,5,5,5,6,6
mode her is 5 repeats 4 times
What is the median?
median is middlemost value in a dataset
Ex,
2,3,5,5,5,5,6,6
sort the numbers and take the midlle value
and if its even take the average of the middle numbers
median here is 4+5th item=5+5/2=5
median=5
if no of observations are odd:
Ex
2,3,5
median =3
mean is the arithmetic average given by
mean=sum pf observations /total observations
Ex:2,3,4
mean=2+3+4/3
=9/3
=3
Define measures of ccentral tendency?
a measure of central tendency is a single value that attempts to describe a set of data by identifying the central position within that set of data.As such measures of central tendency are called measures of central location.
mean,median and mode are all measures of central tendency.
Define the three types of measures of centeral tendency and in what situations we used them.
measure most useful when.. mean the data have no extreme values(values that are much greater or much less than the rest of the data) median the data have extreme values there are no big gaps in gthe middle of the data. mode data have many repeatd measuresRelated Questions
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