7. Draw an ogive cure from the data given belowProfits (Rs in lakhs)No. of Shops10-2020-30830-401240–501850–60251660–708.70-8080-90290–100

Answered: Image /qna-images/answer/93b7758d-6128-4160-a025-a4299b655bf7.jpg

Answered: 7 Draw an ogive cure from the data…

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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Q. No. 1. The cost per item at a supermarket follows an exponential distribution. There are many inexpensive items and a few relatively expensive ones. The mean cost per item is $3.59. What is the percentage of items that cost: [5] i. Less than $1.5? ii. More than $2.5? ii. Between $2 and $4? iv. Find the 35th percentile. Sixty five percent of the supermarket items cost more than what amount? V.
6. The Motion Picture Association of America reports a drop-off of video disc sales. The data in the table below shows consumer spending on video discs (DVD, Blue-ray, and UltraHD Blu-ray) in the United States in the years 2015-2018. Year Consumer Spending on video discs (in billions of dollars) 2015 9.1 2016 8.0 2017 6.8 2018 5.8 (a) What was the average rate of change in consumer spending from 2015 to 2018? (Be sure to include units.) (b) Use the average rate of change calculated above to predict consumer spending on video discs in 2020?
Question (c) Compute cumulative frequencies and cumulative relative frequencies.(d) What is the percentage of days when more than 6 books were stolen?
Compute 3-yearly moving averages of the following data assuming the length Of business cycle as 3 year period and plot the trend va year Annual sales in $ '000 1990 40 1991 42 1590 46 1993 44 1994 49 1995 46 1996 42 1997 44 1998 50
TRUE OR FALSE: Given: Suppose there is a negative correlation between anxiety and performance on complex tasks, then either high level of anxiety causes poor performance on complex tasks or poor performance on complex tasks causes high levels of anxiety. TRUE OR FALSE STATISTICS
3. In the following example, a cohort of six individuals was followed for 100 days after an outbreak of a viral infection in a hospital ward. The graph below shows how many days each subject remained in the study as a non-case (not infected). Those who completed the study as non-cases reached 100 days - the rest fell ill and did become cases. Since we know person-time is used to determine the amount of time at risk, calculate the total time contributed by all six subjects in this study. Note for submission: please make sure to include your units and interpretation in your Worksheet so you have it for review for the midterm, even if Blackboard doesn't allow for this information to be included in your submitted answer! Calculating Person-days F 64 E 100 D. 100 37 55 12 20 40 60 80 100 Days

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7 Draw an ogive cure from the data given below. Profits (Rs in lakhs) No. of Shops 10-20 6. 20-30 8. 30-40 12 40-50 18 50-60 25 60-70 16 70-80 8 80-90 5 2 90-100