Can anyone help me answers these following questions...please. 6. The standard d

Question

Can anyone help me answers these following questions...please. 6. The standard deviation is best defined as a. The variance squared b. The square root of the variance c. The square root of the sum of squares d. The square root of the mean 7. Which of the following measures of variability only uses the highest and lowest scores in a data set? a. Standard deviation b. Variance c. IQR Range 8. When there is a right skew in the data, the mean would be the median. a. Higher than b. Lower than c. Equal to d. Not enough information to answer this question. 9. The level of measurement that deals with actual numbers is b a. Categorica/ordinal b. Dichotomous c. Continuous d. None of the above 10. The set of techniques and tools used to summarize information from a dataset is called a. Deduction b. Inferential statistics c. Induction d. Descriptive statistics 11. If a distribution has a lef skew, then the mean will be higher than the median a. True b. False

Explanation / Answer

6.The Standard Deviation is a measure of how spread out numbers are. The formula is easy: it is the square root of the Variance. .So answer is b.

7. n arithmetic, the range of a set of data is the difference between the largest and smallest values. So answer is d.

8.  in a right skewed distribution (the tail points right on the number line), the meanis higher than the median.So answer is a.

9. In statistics, a categorical variable is a variable that can take on one of a limited, and usually fixed, number of possible values, assigning each individual or other unit of observation to a particular group or nominal category on the basis of some qualitative property. An ordinal variable is a categorical variable for which the possible values are ordered. so answer is a.

10. Descriptive statistics uses the data to provide descriptions of the population, either through numerical calculations or graphs or tables. Inferential statistics makes inferences and predictions about a population based on a sample of data taken from the population in question.

Hence we can see its Inferential statistics so answer is b.

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.