Calculate the sample standard deviation for the following data set. If necessary, round to one more decimal place than the largest number of decimal places given in the data. Number of Calories in Fast Food Cheeseburgers 420 470 930 750 320 420 470 690 910 730 340 750 500 650 380 650 940 550 780 710 560

SCCoast, an Internet provider in the Southeast, developed the following frequency distribution on the age of Internet users. Find the mean and the standard deviation. (Round squared deviations to nearest whole number and final answer to 2 decimal places.)   Age (years) Frequency 10 up to 20   3   20 up to 30   7   30 up to 40   18   40 up to 50   20   50 up to 60   12

Paw Patrol Inc. manufactures toys for kids from 1 to 10 years old. The summary of toy sales by month in 2017 and 2018 is as follows: Dt April May 2018 18600 Period Demand 18716 June 19235 2017 September 19400 July August 19500 October 18300 19753 November 17200 September 18320 December 14998 October 17652 2018 January February March 19800 November 16200 19555 December 15563 19800 What is the Mean Absolute Deviation (MAD), when using the weighted 4-period moving average technique? Use weights of 0.6, 0.2, 0.1, and 0.1 for the most recent period, the second most recent period, the third most recent period, and the fourth most recent period, respectively. O 5445 O 1256 O 1555 O 4450 O 1140

The height (in inches) of a random sample of players in NCAA Division 1 basketball teams is shown to the left.    x 75 80 75 87 77 77 67 83 77 80 73 82 73 71 80 76 72 78 68 74 74 72 76 86 77 77 78   9 Sum of squared deviations:  ∑(x − x̅)² = _______. a 555.83         b 573.02         c 590.74         d 609.01

Resubmitted for the remainder to be answered

Module 5 Measures of Dispersion Name Course and Year Exercise 5.1 Determine the sample variance and standard deviation for the following data. CI F 10-14 5 15-19 20 20-24 35 25-29 25 30-34 15 Total 100

The height (in inches) of a random sample of 28 players in NCAA Division 1 basketball teams is shown to the left.    x 75 80 75 87 77 77 67 83 77 80 73 82 73 71 80 76 72 78 68 74 74 72 76 86 77 77 78   8 Sum of deviations:  ∑(x − x̅) = _______ a -0.5       b 0       c 0.5       d 1

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5. The weight of bags of luggage of 40 Summer Cruise customers were recorded in the table below. Weight (kg) Frequency 21-25 6 26-30 8 31-35 13 36-40 9 41-45 4 Using the above table, calculate the a) the mean weight b) the standard deviation

Calculate standard deviation Marks: 0-10,10-20,20-30,30-40,40-50 Frequency :10,15,10,10,5