Answer the next five questions with the following information. 1. mean 4. Z-valu
ID: 3264920 • Letter: A
Question
Answer the next five questions with the following information.
1. mean 4. Z-value 7. coefficient of variation
2. variance 5. covariance
3. standard deviation 6. correlation coefficient
Which of these statistics require that you to have data for two variables (for example, Xi and Yi respectively).
a. all of them d. only #2, #3, and #5
b. only #5 and #6 e. none of these answers is correct
c. only #4, #5, and #7
Which of these statistics matches to the following statement: “The standard deviation is 17% of the mean.”
a.#7 b.#6 c.#5 d.#4 e. none of these
Which of these statistics matches to the following statement: “The observation is 1.5 standard deviations below the mean.”
a.#7 b.#6 c.#5 d.#4 e. none of these
Which statistic is awkward to interpret because it is measured in squared terms?
a.#3 b.#4 c.#5 d.#6 e. none of these
Which statistic has a range from -1 to +1?
a.#3 b.#4 c.#5 d.#6 e. none of these
Explanation / Answer
Which of these statistics require that you to have data for two variables (for example, Xi and Yi respectively)?
Answer - Coefficient of Variation
Option-A is correct answer
Which of these statistics matches to the following statement: “The standard deviation is 17% of the mean.”
Answer - Covariance and Correlation Coefficient
Option-B is correct answer
Which of these statistics matches to the following statement: “The observation is 1.5 standard deviations below the mean.”
Answer - Z-Value
Option-D is correct answer
Which statistic is awkward to interpret because it is measured in squared terms?
Answer - Variance
Option-E is correct answer
Which statistic has a range from -1 to +1?
Answer - Correlation Coefficient
Option-D is correct answer
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