What is the range tor a sample of March electric bills amounts for all-electric

Question

What is the range tor a sample of March electric bills amounts for all-electric homes of similar sizes (to the nearest dollar): $212. $ 191, $ 176. $ 129. $ 106. $92. S108. $109. $103. $121. $175 and $194. $100 $130 $120 $112 None of the above The test score, for a class of 147 students are computed. What is the location of the test score associated with the third quartile? 111 37 74 75%. The Equal Employment Opportunity Act requires employers to classify their employees by gender and national origin. Which level of measurement is this? Nominal Ordinal Interval Ratio None of the above The relative frequency for a class is computed as Class width divided by class interval Class midpoint divided by the class frequency. Class frequency divided by the class interval. Class frequency divided by the total frequency. Which of the following measures of dispersion are based on deviations from the mean? Variance Standard Deviation Mean deviation All of the above None of the above Which measure of dispersion disregards the algebraic signs (plus and minus) of each difference between X and the mean? Standard deviation Mean Deviation Arithmetic mean Variance None of the above

Explanation / Answer

12)Range=212-103=109->None of These

13)Q3->75%

But it its a uniform distribution->0.75*147=110.25=111

14)Nominal

15)Class frequency divided by total frequency

16)All of the above

17)Mean deviation

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