Customer A and B are being served by two clerks in the post office. Customer C is waiting and he is the last customer of today. Suppose a clerk’s serving time for any customer follows exponential distribution with parameter λ independently. Customers will be served once any of the clerks are available. What’s the probability that customer A the last customer to leave the post office?

This is an econometrics question please help me solve it.

The probability that at least one computer is available at any time in the “Log-On Café” is 0.75. If you made 16 visits to the café, what is the probability that one computer would be available on exactly 10 occasions? If you made 30 visits to the café, what is the probability that one computer would be available at least 20 occasions?

An IT company employs two sales engineers. Engineer 1 does the work of estimating cost for70% of jobs bid by the company. Engineer 2 does the work for 30% of jobs bid by the company.It is known that the error rate for engineer 1 is such that 0.02 is the probability of an error whenhe does the work, whereas the probability of an error in the work of engineer 2 is 0.04. Supposea bid arrives and a serious error occurs in estimating cost. Which engineer would you guess didthe work? Explain and show all work.

Approximately 8% of students at a local high school participate in after-schoold sports every year of hs. A group of 60 seniors is randomly choosen. Of interest is the number who participated in after school aports every year of hs. In words define the variable X, list the values that x may take on, Write the distribution of X mathmatically with correct notation, how many seniors in this group are expected to have participated in after school sports every year of hs, Find the probability that no seniors participated in after school sports every year of hs- list the Excel command used, Based on numerical values would you be suprised if none of the seniors participated in after school sports every year of hs and why?

The manager of a gas station has observed that the times required by drivers to fill their car's tank and pay are quite variable. In fact, the times are exponentially distributed with a mean of 6.5 minutes. What is the probability that a car can complete the transaction in less than 6 minutes?

In insurance sector, the customers are categorized as high risk level, medium risk level and low risk level. The probabilities related with high risk level is 0.1, 0.4 for medium risk and 0.5 for low risk level. In one year period a person from low risk level will have an accident with a probability of 0.1, a person from medium risk level will have an accident with a probability of 0.2, a person from high risk level will have an accident with a probability of 0.35. If a person didn't have accident in that year, calculate the probability that a person is from low risk level? Seçtiğiniz cevabın işaretlendiğini görene kadar bekleyiniz. Soruyu boş bırakmak isterseniz işaretlediğiniz seçeneğe tekrar tıklayınız. 15,00 Puan A 0,45 B 0.303 0.05 0.539 Aramak için buraya yazın

Suppose that 70% of all students in a large university pass all their classes. Find the probability that more than 60% of 34 r/s students from this university pass all their classes.

An engineer decides to buy four new snow tires for his car. He finds that Retailer A is offering a special cash rebate, which depends on how much snow falls during the first winter. If this snowfall is less than 50% of the mean annual snowfall for his city, his rebate will bet 50% of the list price. If the snowfall that winter is more than 50% but less than 75% of the mean annual snowfall, his rebate will be 25% of the list price. If the snowfall is more than 75% of the mean annual snowfall, he will receive no rebate. The engineer finds from a reference book that the annual snowfall for his city has a mean of 80 cm and standard deviation of 20 cm and approximates a normal distribution. The list price for the brand and size of tires he wants is $80.00 per tire. The engineer checks other retailers and finds that Retailer B sells the same brand and size of tires with the same warranty for the same list price but offers a discount of 5% of the list price regardless of snowfall that…

You are given a two dice with 4 sides each, with equal probability of landong on all sides. Dice one has values 1 - 4 and the second has values 5-8. The low-valued die (dice one) is rolled first. If you get a 1 or 2, then you roll the high-valued die (dice 2). If you get 3 or 4, you roll the low-valued die. X= value of the 1st roll Y = value of the 2nd roll Z = X + Y %3D Find H(X), H(Y), H(Z) Find H(Y|X) Find H(X,Y), H(XIҮ) Find I (X;Y)