# Sample probability calculator

This calculator finds the probability of obtaining a certain value for a sample mean, based on a population mean, population standard deviation, and sample size. Simply enter the

• Reach support from expert tutors
• Solve math
• Figure out mathematic question

## Normal Probability Calculator for Sampling

Probability of drawing a blue and then black marble using the probabilities calculated above: P (A ∩ B) = P (A) × P (B|A) = (3/10) × (7/9) = 0.2333 Union of A and B In probability, the union of events, P (A U B), essentially involves the

## Binomial Probability Calculator

Under the same conditions you can use the binomial probability distribution calculator above to compute the number of attempts you would need to see x or more outcomes of interest (successes, events). For example, if you know you

Determine math problems

I can determine math problems.

Deal with mathematic

Mathematics is a way of dealing with tasks that require e#xact and precise solutions.

Better than just an app

Better than just an app, Better provides a suite of tools to help you manage your life and get more done.

Determine mathematic questions

Math is the study of numbers, space, and structure.

## Sampling Distribution

How to calculate probability in sampling distribution? Define your population mean (μ), standard deviation (σ), sample size, and range of possible sample means. Input those

Get mathematics help online

If you're struggling with math, there's help available online. You can find resources and tutors to help you with whatever you're struggling with.

Have more time on your hobbies

If you're struggling with your homework, our Homework Help Solutions can help you get back on track.

## Sample Size Calculator

To do this, use the confidence interval equation above, but set the term to the right of the ± sign equal to the margin of error, and solve for the resulting equation for sample size, n. The equation for calculating sample size is shown below.

## Sampling Distribution Calculator

Unlike the case of the mean, the standard deviation of sample means can be calculated using the formula: s (\bar X) = \displaystyle \frac {\sigma} {\sqrt n} s(X ˉ) = nσ Calculators Related to the normal distribution