distribution for X and Y . 4.12 If a dealer’s profit‚ in units of $5000‚ on a new automobile can be looked upon as a random variable X having the density function fx= 21-x‚0<x<10‚elsewhere find the average profit per automobile. 4.14 Find the proportion X of individuals who can be expected to respond to a certain mail-order solicitation if X has the density function. fx= 2(x+2)50<x<10‚elsewhere 4.28 Consider the information in Exercise 3.28 on page 93. The problem deals with the weight in
Premium Random variable Probability theory Variance
important questions from Hydrostatics: i. Why is it easier to lift a body in a liquid than in the air? ~ We know that‚ Upthrust =Density of fluid*acceleration due to gravity*Immersed volume of the body From the realtion above‚ it is clear that upthrust given by a fluid to a body is directly proportional to the density of the fluid. Also‚ as a matter of fact‚ the density of air is less than that of liquid. So‚ the liquid provides greater amount of upthrust than the air does. This implies that a body
Free Density Water Liquid
has been late for their class at least 1 time so far. Out of those 89 students‚ 14% is late almost every time‚ 17% comes late a few time a week‚ 36% is sometime late‚ and 32% is rarely seen late for class. That’s roughly one- third (31%) of students who’s frequently late for classes. The analysis will look at some of the most common reasons and factors for being late by students. Firstly we’ll take a look at the distance between students home and university and the frequency for being late of the
Premium HTC Sense
Effects of Population Density and Noise By: Stephanie Davis Psy/460 Instructor Aaron Graczyk September 2‚ 2013 Effects of Population Density and Noise Density and noise is able to effect people differently‚ a person’s personal space; territory and privacy can be disrupted by other people‚ chronic noise‚ and short-term noise. The different effects can be from an annoying noise to a more strong intrusive and anxiety forming illness. When population density increases the personal space‚ privacy
Premium Psychology Population density Sound
hi 1. Which of these is not correct as a basic property of electric charges? (a) Total charges in an insulated system is invariable (b) A charged body is electrically unstable (c) * A charged body has equal number of positive and negative charges (d) Positively charged body is deficient of electrons x+q1+q2 = 2 q1 2.Calculate the distance x between charges q1 and q2 shown‚ given the repulsive force between them as 1.2 x 10-4 N‚ take the permittivity of vacuum
Premium Magnetic field Electromagnetism Electric charge
Eutrophication Introduction Europhication (the over enrichment of aquatic ecosystems with nutrients leading to algal blooms and anoxic events) is a persistent condition of surface waters and a widespread environmental problem (Carpenter‚ 2005). The main cause is excessive loading into the system of phosphorus and nitrogen‚ resulting in high algal biomass‚ dominance by cyanobacteria‚ and loss of macrophytes (Dixit‚ 2005). When the nutrient concentrations rise to extremely high levels‚ eutrophication
Premium Water Eutrophication Algae
The first of three image overlays I chose to include for my project was Population Density. Geographically my project tends to focus on water pollution on the south shore of Long Island. This map does an excellent job at showing the increasing population density in residential neighborhoods on the south shore. It also shows that there is a significant increase in population on the east end of Long Island. The significant increases in population explains the need for efforts to upgrade sewage treatment
Premium United States City Racism
Development in Late Adulthood Late adulthood (old age) is generally considered to begin at about age 65. Erik Erikson suggests that at this time it is important to find meaning and satisfaction in life rather than to become bitter and disillusioned‚ that is‚ to resolve the conflict of integrity vs. despair. It has been estimated that by the year 2030‚ Americans over 65 will make up 20% of the population. Despite the problems associated with longevity‚ studies of people in their 70s have shown that
Free Old age Gerontology Death
Haileab Ghebrekiden‚ Lucille Emeruem‚ Shakira Thomas‚ Chris Thomas and Brad Steward 9/18/2014 Physics I Lab Dr. Abdalla Measurement of Length‚ Mass Volume and Density Introduction: All science is concerned with measurement. "MEASUREMENT" is the determination of the size or magnitude of something "Or" The comparison of unknown quantity with some standard quantity of the same rates is known as measurement. Due to this fact we have standards of measurement. Since the precision of all measuring
Free Measurement Volume Uncertainty
Daniel Levinson depicts the late adulthood period as those years that encompass age 65 and beyond. Other developmental psychologists further divide later adulthood into young-old (ages 65–85) and old-old (ages 85 and beyond) stages. Today‚ 13 percent of the population is over the age of 65‚ compared with 3 percent at the beginning of this century. This dramatic increase in the demographics of older adulthood has given rise to the discipline of gerontology‚ or the study of old age and aging. Gerontologists
Premium Old age Gerontology Ageing