Question

$ 805 X Need Help? Read It ASWSBE14 3.E.023. PREVIOUS ANSWERS DETAILS [3.5/7 Points] Consider a sample with data values of 10, 20, 12, 17, and 18. Compute the range and interquartile range. range 110 interquartile range 75 Need Help? Read 8. (-/8 Points] DETAILS ASWSBE14 3.E.024. Consider a sample with data values of 5, 20, 7, 19, and 9. Compute the variance and standard deviation. sample variance sample standard deviation Need Help? 9. 17.5/15 Points) DETAILS PREVIOUS ANSWERS ASWSBE14 3.E.028. Varatta Enterprises sells industrial plumbing valves. The following table lists the annual sales amounts for every sale Salespersonal Sales Amount: $60.00 Salesperson Sales Amount (1000) Type here to search 5€ 32 300

Answer 1

Answer: Given Data :- 10,20,12,17,18 Arrange the given data:- 10, 12, 17, 18, 20 a Range = Maxminum Value - Minimum Value = (20 - 10) = 10 Therefore, Range = 10 b Interquartile range (IQR) is the difference between Q3-Q1 IQR = Q3 - Q1 Q1 = Median of the values below the median or 25% of the data Q3 = Median of the values Above the median or 75% of the data Note: Median of the given data = 10, 12, 17, 18, 20 Median of the given data = 17 Q1= 10, 12, 17, 18, 20 İ.e., Q1 = Median of the values below the median = 12 i.e., Q3 = Median of the values Above the median = 18 Q3= 10, 12, 17, 18, 20 Interquartile range (IQR) = Q3 - Q1 = (18 - 12) IQR = 6

Given Data :- 5, 20, 7, 19, and 9 Arrange the given data:- 5,7,9, 19, 20 Mean = Sum of the values/ number of values = (5 +7+9+19+20)/5 Mean = 12 a Variance = Sum of squared deviation from mean/ (n-1) (5 - 12)^2 + (7 - 12)^2 + (9-12)^2+(19 - 12)^2 + (20 - 12)^2/(5 - 1) = 49 + 25 +9+49 +64 / 4 196/4 Variance = 49 b Standard deviation = Square root of the variance Standard deviation = Square root of 49 Standard deviation = 7