Question

How to calculate a PMF in statistics

Answer #1

Suppose that ? is a random variable with the following pmf: ?(?)
= ?/ ? ; ? = 1,2,3,4,5
a) Find the expected value and variance of ?.
b) Find the expected value of √?, ?[√?].

The PMF below represents the probabilty of catching a fish
Number of fish(X)
0
1
2
3
Probabilty (X)
.35
.5
.10
.005
a- Calculate the probabilty that you catch at least 2 fish?
b- Calculate the probabilty that you catch no fish or three
fish?
c-What is the expected number of fish you catch?

Calculate a 95% confidence interval for the proportion
of students who like statistics. A sample of 120 students has 70
who like statistics.

If x~Uniform{1, 2, ....12}
and Y = gcd(x, 6)
What is PMF of Y?

How
are death statistics collected on anonymous persons?

Correlation study and how they relate to descriptive
statistics

how has statistics improved healthcare quality?

Why is it important to calculate the basic descriptive
statistics before completing inferential statistical analyses?

Let f(x) = (1/2)^x, x = 1,2,3,... be the PMF of the random
variable X. Find the MGF, mean, and variance of X.

How can statistics be utilized when their findings are counter
to popular culture in the way that the statistics related to
smoking were?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 2 minutes ago

asked 5 minutes ago

asked 6 minutes ago

asked 7 minutes ago

asked 8 minutes ago

asked 8 minutes ago

asked 9 minutes ago

asked 9 minutes ago

asked 9 minutes ago

asked 9 minutes ago

asked 16 minutes ago

asked 16 minutes ago