Course Code
edu821


Question
Which of the following is not a measure of dispersion?

Answer
the 50th percentile



Question
Which of the following is not a measure of central location?

Answer
Variance



Question
The difference between the largest and the smallest data values is the

Answer
Range



Question
In a questionnaire, Marital Status is an example of:

Answer
Nominal Scale



Question
The level of measurement that allow the rank ordering of data items is:

Answer
ordinal measurement



Question
The following represents age distribution of students in an elementary class. Find the mode of the values: 7, 9, 10, 13, 11, 7, 9, 19, 12, 11, 9, 7, 9, 10, 11.

Answer
9



Question
A Principal asked students in a class their ages. On the basis of this information, the Principal gave the average age of all the students in the whole school as 21 years. This is an example of

Answer
A statistical inference



Question
In the evaluation of the 2019 election, Nigerians were asked to rate the conduct of the election as Very Good, Good and poor. This is an example of

Answer
ordinal scale



Question
The spearman rank correlation is

Answer
a correlation measure based on rank-ordered data for two variables



Question
Temperature is an example of a variable that uses:

Answer
the ratio scale


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