EDU821
Question: Find the mode of the values: 7, 9, 10, 13,11, 7, 9, 19, 12, 11, 9, 7, 9, 10, 11.
Answer: 9
Question: The difference between the largest and the smallest data values is the
Answer: Range
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: The level of measurement that allow the rank ordering of data items is:
Answer: ordinal measurement
Question: Which of the following is not a measure of dispersion?
Answer: the 50th percentile
Question: Temperature is an example of a variable that uses:
Answer: the ratio scale
Question: Find the mode of the values: 7, 9, 10, 13, 11, 7, 9, 19, 12, 11, 9, 7, 9, 10, 11.
Answer: 9
Question: If the standard deviation of a sample of 50 observations is 6.0, what is the variance of that sample?
Answer: 36
Question: If the size of a population is N and the size of a sample is n, then the correct relationship between N and n is
Answer: N>=n
Question: Abe has just found that the variance of a sample of 32 observations to be 64.0. What then is the standard deviation of the sample?
Answer: 8
Question: Which of the following is not a measure of central location?
Answer: Variance
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