- 3 1 Measures Of Central Tendency 21 3 Find The Mean And Modal Class For The Following A Class Limits Frecuency 0 1 (301.75 KiB) Viewed 72 times
1.- For the following data set 2,3,3,4,4,5,6,7 find the (aVariance (b) Standard deviation (c) Coefficient of Variation 2.- For the following data 1.2, 1.3, 2.2, 3.3.4.4 find the (a) Variance (b) Standard deviation (c) Coefficient of Variation 3.- Which data set is more variable, the data set for question #1 or the data set for question #2? Explain.
26 CHAPTER 3. DATA DESCRIPTION 4.- Find the variance and standard deviation. Class limits Frequency 0-9 4 10 - 19 7 20 - 29 5 30 - 39 8 True/False For any random sample S2 >S (b) For any random sample S2 > 0 (c) If S2 = 0 then CV = 0 (d) The empirical rule contradicts Chevychev's theorem.
1.- For the following data: 1.3, 1.7, 2.1, 2.5, 2.8, 3.7, 3.7, 4.1, 4.3, 4.4, 5.5 find (a) the FIVE NUMBER summary (b) P67 (c) Draw a boxplot (whisker box) 2.- For the following data: 10, 10,30, 35, 45, 55, 65, 75, 75, 80, 80, 90, 100 find (a) the FIVE NUMBER summary (b) P35
3.3. MEASURES OF POSITION 33 (c) Draw a boxplot (whisker box) 3.- Find the outliers (if any) in the following data set: 1,7,8, 8, 9, 10, 10, 10, 12, 18, 25, 27,30 True/False (a) For any random sample X = Q2 (b) For any random sample X = Po (c) For any random sample P25 > Q1 (d) P75 is NOT part of the FIVE NUMBER summary (e) IQR = Q1 +Q3