In a unimodal negatively-skewed frequency distribution,
Select one:
a. mean is less than mode, and mode = median
b. mean is less than median, and median is less than mode
c. mean is greater than mode, and mode is greater than median
d. mean is less than mode, and mode is less than median
e. mean is less than median, and median = mode
When measurement is made on Ranked scale, the appropriate
measure of Central Tendency is:
Select one:
a. Mean
b. Mid-Range
c. Median
d. Variance
e. Mode
Measurements made on which of the following scales has the largest
information:
Select one:
a. Nominal
b. Interval
c. Ranked and Interval
d. Ratio
e. Ranked
Which of the following may not have a unique value:
Select one:
a. Mode
b. Mean
c. Mid-Range
d. Range
e. Variance
Among twenty-five parts produced by a machine, eight are
defective, six having only minor defects and two having major
defects. The probability that a part selected at random has major
defects given that it has defects.
Select one:
a. 2/6
b. 8/25
c. 6/8
d. 2/8
e. 2/25
Which one of the following is computed using values of all
observations:
Select one:
a. Mid-Range
b. Variance
c. Mode
d. Range
e. Median
The median of 6 observations is 21. If the highest score
increases by 3 points, the median will become
Select one:
a. 24
b. 9
c. 21
d. 21.5
e. Cannot be determined without additional information
The following set of scores is obtained on a test, X: 4, 6, 8,
9, 11, 13, 16, 24, 24, 24, 26. The teacher computes all of the
descriptive indices of central tendency and variability on these
data, then discovers that an error was made, and one of the 24's is
actually a 17. Which of the following indices will be changed from
the original computation?
Select one:
a. Mode
b. All: Median, Mode, Range, and Standard deviation
c. Median
d. Range
e. Standard deviation