Question

The probability distribution of a random variable X is given below. x 3 4 6 7...

The probability distribution of a random variable X is given below.

x 3 4 6 7 9
P(X = x) 10/29 2/29 6/29 4/29 7/29


Given the following mean

Find the variance (Var(X)) and the standard deviation, respectively.

a) [5.59, 2.37]

b) [1101.00, 33.18]

c) [1828.91, 42.77]

d) [22.86, 4.78]

e) [44.92, 6.70]

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

So,

Formula for variance is

= 5.5939

   5.59

Formula for standard deviation is

So,

Therefore, the correct option is

a) [5.59, 2.37]

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The probability distribution of a random variable X is given below. x 2 4 8 9...
The probability distribution of a random variable X is given below. x 2 4 8 9 10 P(X = x) 1⁄26 5⁄26 4⁄13 9⁄26 3⁄26 Given the mean Find the variance (Var(X)) and the standard deviation, respectively.
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)   4   0.05 5   0.30 6   0.55 7   0.10 Find the expectation E (X) and variance Var (X) of X. (If necessary, consult a list of formulas.) E (x) = ? Var (X) = ?
The probability distribution of a random variable X is given. x     −4         −2         0         2 &nbsp
The probability distribution of a random variable X is given. x     −4         −2         0         2         4     p(X = x) 0.2 0.1 0.3 0.2 0.2 Compute the mean, variance, and standard deviation of X. (Round your answers to two decimal places.) Find mean, variance, and standard deviation
Find the mean, variance, and standard deviation of the random variable having the probability distribution given...
Find the mean, variance, and standard deviation of the random variable having the probability distribution given in the following table. (Round your answers to four decimal places.) Random variable, x -7 -6 -5 -4 -3 P(X = x) 0.13 0.16 0.4 0.15 0.16
Suppose X is a random variable whose probability distribution is given by the following table: X...
Suppose X is a random variable whose probability distribution is given by the following table: X 0 2 4 6 P(X) 0.11 0.12 0.52 0.25 For each item below, write the capital letter which corresponds to the correct value. Some letters may not be used and some letters may be used more than once. • P(X is even)? • P(X < 4)? • P(X ≤ 4)? • P(X 6= 2)? • P(X = 2 and X = 6)? • P(1...
1. Given a discrete random variable, X , where the discrete probability distribution for X is...
1. Given a discrete random variable, X , where the discrete probability distribution for X is given on right, calculate E(X) X P(X) 0 0.1 1 0.1 2 0.1 3 0.4 4 0.1 5 0.2 2. Given a discrete random variable, X , where the discrete probability distribution for X is given on right, calculate the variance of X X P(X) 0 0.1 1 0.1 2 0.1 3 0.4 4 0.1 5 0.2 3. Given a discrete random variable, X...
From the probability distribution given below, find the mean, variance, standard deviation and expected value of...
From the probability distribution given below, find the mean, variance, standard deviation and expected value of the random variable, X. Round your values for variance and standard deviation to two decimal places (if necessary). X 27 32 54 63 78 P(X) 5/18 1/4 1/12 2/9 1/6
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) 20 0.15 30 0.15 40 0.30 50 0.40 Find the expectation E(X) and variance Var (X) of X.
If X is a random variable with a probability distribution that is given in the following...
If X is a random variable with a probability distribution that is given in the following table where a and b are unknown constants. X -1 0 a 3 b P(X = x) 0.1 0.15a 0.2 0.03b 0.4 (a) Find a and b such that E(5 + 100X) = 260. (b) Find the variance of X.
Q6/   Let X be a discrete random variable defined by the following probability function x 2...
Q6/   Let X be a discrete random variable defined by the following probability function x 2 3 7 9 f(x) 0.15 0.25 0.35 0.25 Give   P(4≤  X < 8) ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــ Q7/ Let X be a discrete random variable defined by the following probability function x 2 3 7 9 f(x) 0.15 0.25 0.35 0.25 Let F(x) be the CDF of X. Give  F(7.5) ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــ Q8/ Let X be a discrete random variable defined by the following probability function : x 2 6...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT