STATS & PROBABILITY MCQs

If a manager wants to know the typical deviation in workers’ productivity, she will calculate the range. (Points : 1)
True
False

Question 2. 2. Technically, “statistic” refers to which? (Points : 1)
A sample characteristic
A measure of variability
A population characteristic
A particular scale of data

Question 3. 3. A probability is found by dividing the number of possible outcomes (o) by the number of successes € = o/e. (Points : 1)
True
False

Question 4. 4. Which of the following defines standard deviation? (Points : 1)
The difference between the highest and lowest values.
The arithmetic average of a set of values.
The average difference between a set of values and the mean.
The average of the highest and lowest values in a set.

Question 5. 5. Which measure of central tendency includes data from every score?

The mean
The standard deviation
The mode
The median

Question 6. 6. Data on the ages of customers are ratio scale data.

True
False

Question 7. 7. Which statement explains what inferential statistical analysis is?

The process of describing the sample.
Understanding the population through the sample.
The accumulation of population characteristics.
Comparing dissimilar samples.

Question 8. 8. The probability of two independent events occurring together equals the product of each of the individual event probabilities. (Points : 1)
True
False

Question 9. 9. A parameter refers to a sample characteristic. (Points : 1)
True
False

Question 10. 10. The z transformation makes data normal. (Points : 1)
True
False