subject
Mathematics, 10.03.2020 09:07 simbupls

The variance of a discrete random variable X with pmf functionf(x) is definedas∑x((x−μX)2f(x)), which is the expected value of the squared distancefrom the mean ,μX. Show that this sum is equal to∑x(x2f(x))−μ2X.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 20:20
Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. identify the domain for each of the given functions.
Answers: 1
question
Mathematics, 21.06.2019 21:30
Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.
Answers: 1
question
Mathematics, 21.06.2019 22:30
21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?
Answers: 1
question
Mathematics, 22.06.2019 01:30
What is the remainder when 3x^2-x-10 is divided by x-1 -6,-7,-8, or -9
Answers: 1
You know the right answer?
The variance of a discrete random variable X with pmf functionf(x) is definedas∑x((x−μX)2f(x)), whic...
Questions
question
Mathematics, 24.02.2021 01:00
question
Social Studies, 24.02.2021 01:00
question
Mathematics, 24.02.2021 01:00
question
Mathematics, 24.02.2021 01:00
question
Mathematics, 24.02.2021 01:00
Questions on the website: 13722361