. GFDED 504-StatiS Section A -Multiple-Choice read all Circle the correct answer

Question

. GFDED 504-StatiS Section A -Multiple-Choice read all Circle the correct answer for each of the questions in this section. Make sure to question is worth I point. I. A characteristic, usually a numerical value that describes an entire population of scores is a a. parameter b. statistic c. variable d. constant After measuring a set of individuals, a researcher finds that Bob's score is three times greater than Jane's score. These measurements must come from a(n) 2. scale. a. nominal b. ordinal c. interval d. ratio 3. What is the shape of the distribution for the following set of data? Data: 1, 1, 1,2, 1, 10 a. symmetrical b. positively skewed c. negatively skewed d. rectangular 4. In a grouped frequency distribution one interval is listed as 50-54. What is the width of this interval? a. 3 points b. 4 points c. 5 points d. 54 points

Explanation / Answer

1:

The numerical value that give a charcteristics about whole population is known as parameter.

Correct option: a

2:

Data must be ratio level.

Correct option: d

3:

Since there is a high outlier (data value 10) so distribution is skewed to right.

Correct answer: b

4:

Width of the interval is

Class width = 54 -50 = 4

Correct option: b

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