![malik1885](/avatars/48417.jpg)
malik1885
11.11.2019 •
Mathematics
The two most common types of errors made by programmers are syntax errors and errors in logic. for a simple language such as basic the number of such errors is usually small. let x denote the number of syntax errors and y the number of errors in logic made on the first run of a basic program. the sample space for x is {0, 1, 2, 3} and the sample space for y is {0, 1, 2, 3, 4, 5}. assume that the joint density for (x, y) is shown in the following table:
x
y
0
1
2
3
0
.400
.100
.020
.005
1
.300
.040
.010
.004
2
.040
.010
.009
.003
3
.009
.008
.007
.003
4
.008
.007
.005
.002
5
.005
.002
.002
.001
(5 points) find the probability that a randomly selected program will have neither of these types of errors.
(5 points) find the probability that a randomly selected program will contain at least one syntax error and at most one error in logic.
(5 points) find the marginal densities for x and y.
(5 points) find the probability that a randomly selected program contains at least two syntax errors.
(5 points) find the probability that a randomly selected program contains one or two errors in logic.
(5 points) are x and y independent?
(10 points) find e[x], e[y], e[xy], and cov(x,y)
(10 points) find var(x), var(y), and rhoxy
(10 points) find the condition density of y given that x = 2, and the conditional mean of y given that x = 2.
Solved
Show answers
More tips
- S Sport Playing Bowling: Rules and Advice for Novices...
- C Computers and Internet How to Properly Repartition a Hard Drive?...
- A Auto and Moto What Is the Cost of Customs Clearance for a Car in Russia?...
- L Leisure and Entertainment Should You Buy a Ceramic Knife?...
- C Computers and Internet How to easily and quickly disable Firebug in Gmail and Google Docs...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
Answers on questions: Mathematics
- M Mathematics 5. question 11: part b: consider the function represented by y=−4(x−1)2+3 choose the answers that correctly complete the sentence about the minimum or maximum value of the function....
- M Mathematics Which quotient is equivalent to 3 3 4 ? a. 3 ÷ 4 b. 12 ÷ 3 c. 15 ÷ 4 d. 4 ÷ 15...
- M Mathematics If the radius of the cone is 9cm and the height is 6cm what is the volume...
- M Mathematics What is two consecutive inters for 57...
- M Mathematics Find the equation of the line containing: (-5,0) and parallel to 2y+6x=3...
- M Mathematics Suppose that a random sample of 200200 twenty-year-old men is selected from a population and that these men s height and weight are recorded. a regression of weight on height yields...
- M Mathematics What are the four consecutive numbers of 50?...
- M Mathematics Alex s friends have collected 180 gold coins to give to charity. alex decides he wants to donate some gold coins also, so he adds some gold coins to the 180 that his friends have...
- M Mathematics Aflagpole that is 30 feet tall casts a shadow that extends 42 feet from the base of the flagpole. what is the distance from the top of the flagpole to the end of the shadow?...
- M Mathematics *pythagoream theorem* the international space station orbits 350 km above earth s surface. earth s raduis is about 6370 km. use the pythagoream theorem to find the distance from...
Ответ:
Work: .75x24= 18