Homework 9.1 Find the expected value for each random variable x 1 3 5 7 P(x)...

Question

Question

Homework 9.1 Find the expected value for each random variable x 1 3 5 7 P(x)...

Homework 9.1

Find the expected value for each random variable

x	1	3	5	7
P(x)	0.1	0.5	0.2	0.2

y	1	15	30	40
P(y)	0.15	0.20	0.40	0.25

z	0	2	4	8	16
P(z)	0.21	0.24	0.21	0.17	.17

math Statistics-And-Probability

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

It is Ix LR6) given 3 oito ciso 5 0.20 7 0.2 . : : Here E() is defined as Ex) = REXER_ at PCX=1.73. P(x-3) +5R2X35) 71-7) --- 01505 15x0.200.3.0X o.foot. Toxo.25 20:150.+ 3+1218 -->> |EM) = 25.15. Random variable : z o 2 4 8 16 012) 0.210 Ci 200 0.210

Add a comment

Answer 2

Similar Homework Help Questions

1. Two independent random variables X and y are given with their distribution laws 4 P 07 0.1 0.2 P 0.2 0.3 0.5 Find 1) the variance of random variable Y 2) the distribution law of random vari...

1. Two independent random variables X and y are given with their distribution laws 4 P 07 0.1 0.2 P 0.2 0.3 0.5 Find 1) the variance of random variable Y 2) the distribution law of random variable Z-0.5Y+x END TEST IN PROBABL ITY THEORY AND STAISTICS Variant 1 1. Two independent random vanables X and Y are given with their distribution laws: 2 0.7 0.1 P 0.2 0.3 0.5 0.2 Find 1) the variance of random varñable Y 2)...
2.1 Let X be a discrete random variable with the following probability distribution Xi 0 2 4 6 7 P(X =...

2.1 Let X be a discrete random variable with the following probability distribution Xi 0 2 4 6 7 P(X = xi) 0.15 0.2 0.1 0.25 0.3 a) find P(X = 2 given that X < 5) b) if Y = (2 - X)2 , i. Construct the probability distribution of Y. ii. Find the expected value of Y iii. Find the variance of Y
Let X be a random variable with the following probability distribution: value x of X P...

Let X be a random variable with the following probability distribution: value x of X P (X= x) 40 50 60 70 80 90 0.10 0.15 0.40 0.20 0.05 0.10 Find the expectation E (X) and variance Var(X) of X. (If necessary, consult a list of formulas.) Var(x)-

Determine if the following tables can serve as a probability distribution for some random variable based...

Determine if the following tables can serve as a probability distribution for some random variable based on the three conditions: (1) $X$ values are numerical. (2) $P(x)$ values are between 0 and 1 and. (3) sum of P(x) values is 1 (P(x) = 1). If all three conditions are met, write not applicable (NA) for the second part. (a) x 02 3 4 5 P(x) 0.2 0.24 0.16 0.3 0.2 This table a a probability distribution because it does not...
3. Let X be a discrete random variable with the following PMF: 0.1 for x 0.2...

3. Let X be a discrete random variable with the following PMF: 0.1 for x 0.2 for 0.2 for x=3 Pg(x)=〈 0.1 for x=4 0.25 for x=5 0.15 for x=6 otherwise a) (10 points) Find E[X] b) (10 points) Find Var(X) c) Let Y-* I. (15 points) Find E[Y] II. (15 points) Find Var(Y) X-HX 4. Consider a discrete random variable X with E [X]-4x and Var(X) = σ. Let Y a. (10 points) Find E[Y] b. (20 points) Find...
Let x be a random variable with the following probability distribution Value x of x P(X=x...

Let x be a random variable with the following probability distribution Value x of x P(X=x -10 0.05 0 0.20 10 0.30 20 0.20 30 0.10 40 0.15 E (x)= Var (x)=

Find the expected value of the random variable X, which has the following PDF: x (score)...

Find the expected value of the random variable X, which has the following PDF: x (score) 22 18 13 10 12 2 p(x) 0.15 0.17 0.11 0.06 0.23 0.28 E[X]= _____ (Round your answer to two decimal places.)
The random variable X has probability distribution 1 3 5 7 9 P(X=x) 0.2 0.3 0.2...

The random variable X has probability distribution 1 3 5 7 9 P(X=x) 0.2 0.3 0.2 0.15 0.15 Find E(X) and Var(X)
This Question: 3 pts 300 Find the expected value for the random variable. 3 6 9...

This Question: 3 pts 300 Find the expected value for the random variable. 3 6 9 12 15 N P(z) 0.14 0.24 0.36 0.16 0.10 O A. 8.52 OB .32 C. 9 OD. 5.85

help asap 2. The random variable X is uniformly distributed in the interval [4,8). Find the...

help asap 2. The random variable X is uniformly distributed in the interval [4,8). Find the probability density function for random variable Y if Y 6X 12 3. Two independent random variables X and y are given with their distribution laws: 0.2 0.4 0.1 0.9 0.7 0.1 p. Find the distribution law and mode of the random variable Z-5XY 0.2

Homework 9.1 Find the expected value for each random variable x 1 3 5 7 P(x)...

Homework Answers

Add Answer to:
Homework 9.1 Find the expected value for each random variable x 1 3 5 7 P(x)...

Post as a guest

Earn Coins

1. Two independent random variables X and y are given with their distribution laws 4 P 07 0.1 0.2 P 0.2 0.3 0.5 Find 1) the variance of random variable Y 2) the distribution law of random vari...

2.1 Let X be a discrete random variable with the following probability distribution Xi 0 2 4 6 7 P(X =...

Let X be a random variable with the following probability distribution: value x of X P...

Determine if the following tables can serve as a probability distribution for some random variable based...

3. Let X be a discrete random variable with the following PMF: 0.1 for x 0.2...

Let x be a random variable with the following probability distribution Value x of x P(X=x...

Find the expected value of the random variable X, which has the following PDF: x (score)...

The random variable X has probability distribution 1 3 5 7 9 P(X=x) 0.2 0.3 0.2...

This Question: 3 pts 300 Find the expected value for the random variable. 3 6 9...

help asap 2. The random variable X is uniformly distributed in the interval [4,8). Find the...

Homework 9.1 Find the expected value for each random variable x 1 3 5 7 P(x)...

Homework Answers

Add Answer to: Homework 9.1 Find the expected value for each random variable x 1 3 5 7 P(x)...

Post as a guest

Earn Coins

Add Answer to:
Homework 9.1 Find the expected value for each random variable x 1 3 5 7 P(x)...