28. Estimate the number of persons whose incomes are between Rs. 400 and500 per day from the followng data. Use Newton's method :Income (Rs.)No. of persons (in 000)Below 200 200-400 400-600120600-800 800-1000250145200150

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Answered: 28. Estimate the number of persons…

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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A patient is classified as having gestational diabetes if their average glucose level is above 140 milligrams per deciliter (mg/dl) one hour after a sugary drink is ingested. Rebecca's doctor is concerned that she may suffer from gestational diabetes. There is variation both in the actual glucose level and in the blood test that measures the level. Rebecca's measured glucose level one hour after ingesting the sugary drink varies according to the Normal distribution with μ=140+5 mg/dl and σ=5+1 mg/dl. Using the Central Limit Theorem, determine the probability of Rebecca being diagnosed with gestational diabetes if her glucose level is measured: Once? n=5+2 times n=5+4 times Comment on the relationship between the probabilities observed in (a), (b), and (c). Explain, using concepts from lecture why this occurs and what it means in context.
An investigation was carried out to study the relationship between speed (ft/sec) and stride rate (number of steps taken/sec) among female marathon runners. Resulting summary quantities includedn = 11, E(speed) = 205.5, E(speed)2 = 3884.08, E(rate) = 35.15, E(rate)2 = 112.691, and E(speed)(rate) = 660.136. (a) Calculate the equation of the least squares line that you would use to predict stride rate from speed. (Round all numerical values to four decimal places.) (b) Calculate the equation of the least squares line that you would use to predict speed from stride rate. (Round all numerical values to four decimal places.) (c) Calculate the coefficient of determination for the regression of stride rate on speed of part (a) and for the regression of speed on stride rate of part (b). (Round your answers to three decimal places.) for part (a) for part (b)
4. The number of bacteria cells in a colony is changing according to the function C(t) = 400,000 ) where t is the amount of time, in days, since the number of cells began to change. a) Is the colony increasing or decreasing? Explain. b) What is the relative rate of change of the colony as a fraction? c) About how many cells are there in the colony after 3 weeks?
The chart below shows the average depth of water in a river for 3 different months of the year. What is the best approximation for the depth of the river for the month of June (the 6th month of the year)? AVERAGE DEPTH MONTH (in feet) January 11 May 28 September 12 HINT: If you cannot find the instantaneous rate of change (tangent slope) the next best thing is the average rate of change (secant slope)! 13 feet 17 feet 79 feet 4 20 feet 24 feet
The height ( in inches) of a plant x months after an experiment begins is given by
its not 35,500.

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28. Estimate the number of persons whose incomes are between Rs. 400 and 500 per day from the followng data. Use Newton's method : Income (Rs.) No. of persons (in 000) Below 200 200-400 120 400-600 600-B00 800-1000 250 145 200 150