fClass IntervalfxcfX- mean(x - mean)^2f(x - mean)^2Frequency Class Mark95-99390-9485-891080-841575-792370-741165-6960-644N =Efx =Ef(x - mean)^2 =.The distribution of heart rates (in pulse/minute) of 80 random chosen or selected patients for clinicaltrials for a new anti-hypertensive is given above.What is the value of Efx=O a.6526Ob.6265Oc.6256O d. 6562

Answered: Image /qna-images/answer/d3c025f3-72d0-46f2-a005-024cd1e09eb1.jpg

Answered: Class Interval fx cf X- mean (x -…

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.3: Special Probability Density Functions

Problem 7E

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The standard error of the mean (Qx) is a(n) estimate of population means which make up the sampling distribution. indication of variability in the distribution of sample means indication of variability in the raw data derived from the sample measure of variability in the population
Mean= Standard deviation =
Calculate the Index of Qualitative Variation
The mean lifetime income of high school graduates in the United States is 2 million dollars higher than the mean for people without high school diplomasThe typical high school student is in school 7.5 hours per day180 days per yearfor years Given these statistics, how much is the mean student earning per hour by attending high school?
A water footprint is a measure of the appropriation of fresh water. The per capita water footprint (in mega gallons) in a certain country for a recent year can be approximated by a normal distribution, as shown in the figure. Mean = 1.55 Standeard deviation = 2.91 (a) What water footprint represents the 89th percentile? (b) What water footprint represents the 34th percentile? (c) What water footprint represents the third quartile?
Pulmonary Disease Forced expiratory volume (FEV) is an index of pulmonary function that measures the volume of air expelled after 1 second of constant effort. FEV is influenced by age, sex, and cigarette smoking. Assume that in 45- to 54-year-old nonsmoking men FEV is normally distributed with mean = 4.2 L and standard deviation = 0.5 L. In comparably aged currently smoking men FEV is normally distributed, with mean = 3.2 L and standard deviation = 0.6 L. (Assume that FEV can be measured exactly and no continuity correction is necessary. Round your answers to four decimal places.) USE SALT (a) If an FEV of less than 2.5 L is regarded as showing some functional impairment (occasional breathlessness, inability to climb stairs, etc.), then what is the probability that a currently smoking man has functional impairment? (b) What is the probability that a currently nonsmoking man has functional impairment? Some people are not functionally impaired now, but their pulmonary function usually…
The revenue (in millions of dollars) for a company from 2007 to 2016 is given in the following table. Team 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Value 5744 5707 5550 5645 5986 5995 5917 6116 6276 6446 (a) Find the mean and median for these data. (b) What year's revenue is closest to the mean? (a) The mean is $ million. (Type an integer or a decimal.) The median is $ million. (Type an integer or a decimal.)
Standard deviation can only be used for variables measured at the interval level central level nominal level ordinal level
Standard Deviation
OLS estimator
Pulmonary Disease Forced expiratory volume (FEV) is an index of pulmonary function that measures the volume of air expelled after 1 second of constant effort. FEV is influenced by age, sex, and cigarette smoking. Assume that in 45- to 54-year-old nonsmoking men FEV is normally distributed with mean = 4.1 L and standard deviation = 0.5 L. = 0.6 L. (Assume that FEV can be measured exactly and no continuity correction is In comparably aged currently smoking men FEV is normally distributed, with mean = 3.9 L and standard deviation necessary. Round your answers to four decimal places.) USE SALT (a) If an FEV of less than 2.5 L is regarded as showing some functional impairment (occasional breathlessness, inability to climb stairs, etc.), then what is the probability that a currently smoking man has functional impairment? (b) What is the probability that a currently nonsmoking man has functional impairment? Some people are not functionally impaired now, but their pulmonary function usually…
“Among those born in 1920, a woman in the lowest income group surviving to 50 could expect to live to age 80. A woman in the highest income group could expect to live to age 84. Use the chart below (and the 1st chart, above) to compute the percentage difference [(final–initial)/initial*100% or change/initial*100%] for Life Expectancy at age 50 for women born in 1920 and 1940 for the top and bottom deciles.

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