Find the variance and standard deviation round your answer to two decimal places 5. The number of sales a salesman had in the previous 7 days are: 5, 1, 2, 1, 6, 5, and 1.

Learn how to find variance and standard deviation and see examples that walk through solutions, step-by-step, so you can improve your math knowledge and skills.

Nov 21, 2023 · What is population variance, and what is its significance? Learn how to use the population variance formula, and understand population variance vs sample variance.

Learn how to calculate the variance of a discrete random variable, and see examples that walk through sample problems step-by-step for you to improve your statistics knowledge and skills.

Learn how to calculate the variance of the sampling distribution of a sample mean, and see examples that walk through sample problems step-by-step for you to improve your statistics …

Learn how to calculate the variance of the difference of two independent discrete random variables, and see examples that walk through sample problems step-by-step for you to …

Learn how to calculate the variance of a binomial distribution, and see examples that walk through sample problems step-by-step, so that you can improve your statistics knowledge and skills.

Nov 21, 2023 · In this lesson, learn what population variance is and the formula to calculate it. Learn the difference between sample variance and population...

Nov 21, 2023 · Learn about sample variance and compare it to population variance. Explore how to find sample variance using the formula and see the sample...

Nov 21, 2023 · In this lesson, we will learn how to find a moment-generating function, as well as how to use it to find expected value and variance.