Compute expectations and variances of x and y

Assignment Help Basic Statistics

Reference no: EM13127986

Four buses carrying 160 high school students arrive to Montreal. The buses carry, respectively, 34, 48, 29, and 49 students. One of the studetns is randomly selected. Let X denote the number of students that were on the bus carrying this randomly selected student. One of the 4 bus drivers is also randomly selected. Let Y denote the number of students on his bus. Compute the expectations and variances of X and Y.

Reference no: EM13127986

Questions Cloud

What is the final temperature of the water : 2K(s)+2H2O(l)--> 2KOH(aq) + H2(g) A 5.00 g chunk of potassium is dropped into 1.00 kg water at 24 deg C. What is the final temperature of the water after the preceding reaction occur.

Use chain rule for first three derivatives : I need to know how to find first 3 derivatives for f(x) = cos(sq) 2X. I am able to find derivatives for similar problems, but the 2X portion is throwing me off.

Illustrate what should shorebuck do : Latte has a unit contribution margin of $45 and takes three machine hours to make and cappuccino has a unit contribution margin of $32 and takes two machine hours to make. There are 1,200 machine hours available to manufacture a product. Illustra..

What is the breakeven point for this company in units : Let's say that a company produces a single product with a sale price of $25 per unit. The variable cost per unit is $15 and the company incurs fixed costs of $50,000 per month. What is the breakeven point for this company in units and sales dollar..

Compute expectations and variances of x and y : One of the 4 bus drivers is also randomly selected. Let Y denote the number of students on his bus. Compute the expectations and variances of X and Y.

Recognizing the amount of revenue : Payment terms were: 50% due on October 1, 1996, 25% due on first delivery and 25% due on the second delivery. What amount of revenue should Acme recognize from this sale during 1996?

Slope of tangent line and derivatives : Find the point on the graph of the given function at which the slope of the tangent line is the given slope.

Illustrate what is the minimum price that company should set : Assume if PowerPunch sells for $7.25 per bottle, how much profit does the company earn per bottle of PowerPunch that it sells? Illustrate what is the minimum price that the company should set per bottle of SlimLife?

Calculate the concentration of argon : Calculate the concentration of argon in lake water at 20C. if the partial pressure of argon is 0.0090 atm and Henry's constant is 0.0015

User Account

All Pages