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Question: A particular brand of dishwasher soap is sold in three sizes: 30 oz, 45 oz, and 65 oz. Twenty percent of all purchasers select a 30-oz box, 50% select a 45-oz box, and the remaining 30% choose a 65-oz box. Let X1 and X2 denote the package sizes selected by two independently selected purchasers. (a) Determine the sampling distribution of X. x 30 37.5 45 47.5 55 65 p(x) Calculate E(X). E(X) = oz Compare E(X) to µ. E(X) > µ E(X) < µ E(X) = µ (b) Determine the sampling distribution of the sample variance S2. s2 0 112.5 200 612.5 p(s2) Calculate E(S2). E(S2) = Compare E(S2) to s2. E(S2) < s2 E(S2) = s2 E(S2) > s2
Differentiate the following functions with respect to the independent variable.
Also, the number of radio ads must be at least as great as the number of television ads. How many ads of each type should be used? How many people will this reach?
how many terms of the series , 24+20+16+-----should be added so that the sum may be 72.
find the total distance from the given particle.the position of a particle at any time t gt 0 is given by xt t2 - 2
Calculate the mean and standard deviation of the distribution for your example. Binomial and Poisson Distributions in Real Life
1. Find the area enclosed by the curve x = t^2 - 2t, y = sqrt(t) and the y-axis. 2. Find a Cartesian equation for the curve and identify it. r^2 cos 2θ = 1
A tank in the shape of a sphere with radius 10 m is full of gasoline, with density 680 kg/m3. Calculate the work required to empty the tank through a hole at the top.
10 students receive marks of at least 75% in one or more of these classes. A sponsor gives a scholarship of $500 to anyone who receives a mark of at least 75% in all three courses. What can the sponsor expect to pay on average
Find a quadratic polynomial approximate solution to the BVP using the collocation method with the collocation point at the centre of the domain x1 = 1.
This problem is basically belongs to Mathematics and it is about finding the intercepts for x-axis and y-axis for the given graph.
A formula is derived for the n-th derivative of a function that is a product of two other functions, f(x)=u(x).v(x). This formula is used to write down the n-th derivative of f(x) = e^x/(1 − x).
If the periphelion of mars is 128.5 million miles, what is the aphelion? Write an equation for the orbit of mars about the sun.
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