Subject: Statistics Please show complete work for the multiple-choice questions below 1. If the mean and...

Subject: Statistics

Please show complete work for the multiple-choice questions below

1. If the mean and median are equal, you know that the:
a. distribution is symmetrical
b. distribution is skewed
c. distribution is normal
d. mode is equal to the median

2. The mean, median and mode are all measures of:
a. the midpoint of the distribution
b. the most common score
c. percentile ranks
d. variability

3. Which of the following characterizes the mean?
a. The sum of all the measurements divided by the number of measurements.
b. The point in a distribution about which the summed deviations equal zero.
c. The point in a distribution about which the sum of the squared deviations
is minimal.
d. All of the above.

4. Which statistic does not belong with the others?
a. range
b. mean
c. variance
d. standard deviation

5. Which of the following samples exhibits the least variability?
a. 2,4,6,8,l0,l2
b. 2,2,3,ll,l2,l2
c. 2,3,4,l0,ll,l2
d. 2,6,7,7,8,l2

Solutions

Expert Solution

orchestra answered 1 year ago

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