Question

Example Question with answer, My problem is at the bottom.

Fill in the *P(X =* *x)* values in the table
below to give a legitimate probability distribution for the
discrete random variable *X*, whose possible values are −6,
2, 3, 5, and 6.

Value *x* of *X: -6,* 2, 3, 5, 6

P(X=x): 0.25, 0.21, 0.13, __, __

EXPLANATION

The values that the discrete random variable *X*

may take are −6, 2, 3, 5, and 6. Thus, it must be that P(X= -6)+P(X=2)+P(X=3)+PX=5)+P(X=6) = 1, with 0 < equal to sign P(X=x) < equal to sign 1 for x = -6, 2, 3, 5, 6

From the information given, we have 0.25+0.21+0.13+P(X=5)+P(X=6) = 1,

which means that P(X=5)+P(X=6) = 1-(0.25+0.21+0.13) =0.41.

To complete the probability distribution, then, we must choose
*P (X=5) and P(X=6)* to be any numbers from 0 to 1 such that
P(X-5)+P(X=6) = 0.41

.

For example, we could choose P(X=5) = 0.17 and P(X=6) = 0.24

One correct answer is:

ANSWER

Value *x* of *X: -6, 2, 3, 5, 6*

*P (X=x): 0.25, 0.21, 0.13, 0.17, 0.24*

*My problem that I am having trouble with:*

Fill in the *P(X=x)* values in the table below to give a
legitimate probability distribution for the discrete random
variable *X*, whose possible values are −3, 0, 1, 5, and
6.

Value *x* of *X: -3, 0, 1, 5, 6*

*P(X = x): 0.12, 0.27, 0.16, __, __*

Answer #1

Fill in the
P(X=x )values in the table below to give a
legitimate probability distribution for the discrete random
variable
X,whose possible values are -3,-1,4,5,6
Value of x
-3,-1,4,5,6
P (X=x)
0.18,0.15,0.17,___,___

Fill in the values in the table below to give a legitimate
probability distribution for the discrete random variable , whose
possible values are -5, -4,2,4,and 6 .
Value x of X
-5,-4,2,4, 6
(PX=x)
____
____
0.22
0.27
0.15

A random variable X has the following discrete probability
distribution.
x
12
19
22
24
27
32
p(x)
0.13
0.25
0.18
0.17
0.11
0.16
Calculate σ = standard deviation of X (up to 2 decimal places).

x
P(X=x)
0
0.44
The incomplete
table at right is a discrete random variable x's
probability distribution, where x is the number of days in
a week people exercise. Answer the following:
1
0.18
2
0.02
3
(a)
Determine the
value that is missing in the table.
4
0.03
5
0.13
6
0.07
(b)
Explain the meaning of " P(x < 2) " as it applies to the context
of this problem.
7
0.04
(c)
Determine the
value of P(x >...

In the accompanying table, the random variable x represents the
number of televisions in a household in a certain country.
Determine whether or not the table is a probability distribution.
If it is a probability distribution, find its mean and standard
deviation.
x P(x)
0 0.03
1 0.13
2 0.32
3 0.25
4 0.17
5 0.10
If the table is a probability distribution, what is its mean?
Select the correct choice below and fill in any answer boxes within
your...

Consider a random variable X with the following probability
distribution:
P(X=0) = 0.08, P(X=1) = 0.22,
P(X=2) = 0.25, P(X=3) = 0.25,
P(X=4) = 0.15, P(X=5) =
0.05
Find the expected value of X and the standard deviation of
X.

Consider the following discrete probability distribution.
x
−15
−5
15
20
P(X = x)
0.52
0.13
0.16
.
Complete the probability distribution. (Round your
answer to 2 decimal places.)
P(X = 15)
c.
What is the probability that the random variable X is
positive? (Round your answer to 2 decimal
places.)
Probability
d.
What is the probability that the random variable X is
greater than −10? (Round your answer to 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...

Consider the following discrete probability distribution. x −30
−5 20 35 P(X = x) 0.53 0.17 0.12
a. Complete the probability distribution. (Round your answer to
2 decimal places.)
b. What is the probability that the random variable X is
negative? (Round your answer to 2 decimal places.)
c. What is the probability that the random variable X is greater
than −25? (Round your answer to 2 decimal places.)
d. What is the probability that the random variable X is...

1. Random Variable: The variable X represents the number of
goals scored by the soccer team Liverpool FC during all
competitions of the 2018- 2019 season.
X: 0, 1, 2, 3, 4, 5
P(X): 0.13, 0.25, 0.23, 0.17, 0.17, 0.05
a. Does the above table represent a probability distribution for
the variable X? Explain.
b. Calculate the mean value for the variable X.
c. What is the probability that they score 2 or more goals for a
given game during...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 53 seconds ago

asked 3 minutes ago

asked 12 minutes ago

asked 18 minutes ago

asked 21 minutes ago

asked 22 minutes ago

asked 22 minutes ago

asked 22 minutes ago

asked 22 minutes ago

asked 23 minutes ago

asked 34 minutes ago

asked 41 minutes ago