The population, f, of asmall community on theoutskirts of a city grewrapidly overa fifteenyear period, ascan beseen in the table:1015f(x)100212448949Here x denotes time (inyears), while f(x)represents the size ofthe population of thecommunity at time x.Asan engineer workingfor an electricitycompany, you must find anapproximation for whatthe population size wasat time x = 7.5, in orderto estimate what the to estimate what thedemand for electricitywasat the time.a) Construct a backwarddifference table for thedata.b) Use the backwarddifference tablepresented in a), alongwith Newton's backwarddifference formula, toapproximate f(7.5) with apolynomial of degree 2,P2(x). Start withXn15.c) Estimate the error inthe approximation in b).

Answered: to estimate what the demand for…

to estimate what the demand for electricity was at the time. a) Construct a backward difference table for the data. b) Use the backward difference t able

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable "weekly time spent watching television" would be normally distributed? If not, what shape would you expect the variable to have? O A. The variable "weekly time spent watching television" is likely uniform, not normally distributed. O B. The variable "weekly time spent watching television" is likely skewed left, not normally distributed. O C. The variable "weekly time spent watching television" is likely normally distributed. O D. The variable "weekly time spent watching television" is likely skewed right, not normally distributed. O E. The variable "weekly time spent watching television" is likely symmetric, but not normally distributed. (b) According to a certain survey, adults spend 2.45 hours per day watching television on a weekday. Assume that the standard deviation for…
Solve attached photo.
Shelia's doctor is concerned that she may suffer from gestational diabetes (high blood glucose levels during pregnancy). There is variation both in the actual glucose level and in the blood test that measures the level. A patient is classified as having gestational diabetes if the glucose level is above 140 milligrams per deciliter one hour after a sugary drink is ingested. Shelia's measured glucose level one hour after ingesting the sugary drink varies according to the Normal distribution with mean 128 mg/dl and standard deviation 9 mg/dl. Let ? denote a patient's glucose level. (a) If measurements are made on four different days, find the level ? such that there is probability only 0.01 that the mean glucose level of four test results falls above ? for Shelia's glucose level distribution. What is the value of ??ANSWER: (b) If the mean result from the four tests is compared to the criterion 140 mg/dl, what is the probability that Shelia is diagnosed as having gestational…
2. Which model-linear, quadratic, or exponential-seems most appropriate for this scatter plot? X