Sketch a probability tree for situation

Reference no: EM131008067

Computer reliability. Laptop computers have been growing in popularity according to a study by Current Analysis Inc. Laptops now represent more than half the computer sales in the United States. A campus bookstore sells both types and in the last semester sold 56% laptops and 44% desktops. Reliability rates for the two types of machines are quite different, however. In the first year, 5% of desktops require service, while 15% of laptops have problems requiring service.

a) Sketch a probability tree for this situation.

b) What percentage of computers sold by the bookstore last semester required service?

c) Given that a computer required service, what is the probability that it was a laptop?

Reference no: EM131008067

Questions Cloud

Estimate frequency of wind and give practical interpretation : The temperature adjusted for wind chill is a temperature that tells you how cold it feels. Estimate fw (20, 20) and give a practical interpretation. Estimate fT (15, 15) and give a practical interpretation.

Seasonal dummy variables : a) Based on the description of these data, what time series components can you identify? b) If you identified a seasonal component, what is the period? c) If you use seasonal dummy variables, specify the dummy variables you would use.

Name for the kind of variable : a) What is the name for the kind of variable called Jan in this model? b) Why is there no predictor variable for December? c) Is there evidence of a cyclic component in these data?

What is the mass velocity and direction angle : what is the mass, velocity, and direction angle of the fourth object? put the mass and the magnitude of the velocity in the table below. after you find the velocity and direction, mark on the diagram its approximate location

Sketch a probability tree for situation : Sketch a probability tree for this situation. What percentage of computers sold by the bookstore last semester required service? Given that a computer required service, what is the probability that it was a laptop?

Where did this ethical theory originate from : Investigate utilitarianismon the internet and answer the following questions: Where did this ethical theory originate from? What are the basic ideas of this theory

What is the specific citation that describes the guidelines : What is the specific citation that describes the guidelines for determining what items should be deemed cash equivalents?

High-demand periods : Market segmentation and chance. Aaron'sAir (see Exer- cises 32 and 34) estimates that high-demand periods (which depend on the weather and on bookings for confer- ences) occur with probability .3 and medium demand peri- ods occur with probability ..

Conduct a test to determine whether the two variables : In one variation of the experiment, two variables were measured: active head movement (x, percent per degree) and body plus head rota- tion (y, percent per degree). The data for n = 39 trials were subjected to a simple linear regres- sion analysis..

User Account

All Pages