Question 4The table and the graph below show information about the number of students in an education center in eachterm in years 2018 to 2020.Year201820192020Term1st2ndsummer1st2nd1st2ndsummersummerNumber of students7563908175969078102Number of Students1101009080706050402018201820182019201920192020202020201st2ndSummer1st2ndSummer1st2ndSummer(a) Describe the trend and seasonal variation of the number of students in this education center based on theabove plot.(b) The table below shows the 3-period moving averages about the number of students in the educationcenter:YearTermNumber of Students3-period Moving Average20181st7520182nd63762018summer907820191st81K20192nd75842019summer968720201st908820202nd78W2020summer102(bi) Calculate the values of K and W for the above 3-period moving average.(bii) Calculate the seasonal variation for 1st term, 2nd term, and summer term respectively by using the above3-period moving average table.

Consider the data and the graph that represents the number of students in an institute in each term…

Answered: Question 4 The table and the graph…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Please help with the corrected answers in details: The following time series shows the sales of a particular product over the past 12 months. Month Sales 1 105 2 135 3 120 4 105 5 90 6 120 7 145 8 140 9 100 10 80 11 100 12 110 What type of pattern exists in the data? The data appear to follow a trend pattern. The data appear to follow a horizontal pattern. The data appear to follow a cyclical pattern.The data appear to follow a seasonal pattern. (b) Use ? = 0.2 to compute the exponential smoothing values for the time series. (Round your answers to two decimal places.) Month t Time Series Value Yt Forecast Ft 1 105 2 135 3 120 4 105 5 90 6 120 7 145 8 140 9 100 10 80 11 100 12 110 (c) Use a smoothing constant of ? = 0.4 to compute the exponential smoothing forecasts. (Round your answers to two decimal places.) Month t Time Series Value Yt Forecast Ft 1 105 2 135…
Following shows the numbers of Amazon Prime members in the millions, each quarter from 2016 to 2021. Quarter 2016 2017 2018 2019 2020 2021 1 26 36 48 62 81 98 2 27 37 50 65 83 103 3 29 40 53 69 86 109 4 33 44 57 74 93 117 Construct a line chart using the data. Describe the relationship between the time and number of subscribers.
d and e please
The survivorship curve indicated by the graph best represents a curve, and is common in populations of Life Stage O a. Type l, marine invertebrates O b. Type Il, fishes Oc. Type l, humans o d. Type II, birds O e. Type l, plants % Surviving
. Death 2010 The January 2012 National Vital StatisticsReport by the Centers for Disease Control and Preventionincluded information on deaths in the United States forthe year 2010. The 4 most common causes-heart disease,cancer, respiratory diseases, and stroke-accounted fornearly 60% of all deaths. What problems do you see withthe graph at the top of the next column?
48. From the data given below, calculate seasonal indices for I, II, III and IV quarters assuming the trend is absent : Quarter Year 2014 2015 2016 2017 2013 41 45 44 40 42 35 36 38 35 37 II 38 36 38 38 39 II 40 41 42 IV 40 38
Question 3 Refer to the stack plot below. The vertical scale is the proportion of sales. (a) Describe the proportion of sales for puzzle games between 1985 and 2015. (b) Which genre(s) increased in proportion of sales between 2010 and 2015? (c) Which genre had the largest proportion of sales in 1985? Video Games by Year and Genre: 1980-2016 1.0- 0.9- Genre 0.8 Action Advente Fighting Misc Platform Puzzle 0.7- 0.6- 0.5- Racing Role-Play Shooter Simulation 0.4- 0.3 0.2- Sports Strategy 0.1- 0.0- 1980 1985 1990 1995 2000 2005 2010 2015 O True O False
Topic: FREQUENCY DISTRIBUTION DATA GROUPED Below are the durations (in seconds) of songs that were popular. (The Songs are by Timberlake, Furtado, Daughtry, Stefani, Fergie, Akon, Ludacris, Beyonce, Nickelback, Rihanna, Fray, Lavigne, Pink, Mims, Mumidee and Omarion). 448 242 231 246 246 293 280 227 244 213 262 239 213 258 255 257 A. Find the range, mean, median, mode, the variance and the standard deviation. B. Is any duration very different from the others? How is this fact evidenced in each of the Measures of location and dispersion found? C. Calculate the coefficient of variation. What can say about the relationship between the average duration of the songs and the calculated deviation?
Section 2.1, question 9
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