subject
Mathematics, 17.10.2021 14:00 eleaanastasiawo

You roll a die, winning nothing if the number of spots is odd, $3 for a 2 or a 4, and $10 for a 6. Round your answers to 3 decimal places (a) Find the expected value and standard deviation of your prospective winnings.
The expected value is
, the standard deviation is

(b) You play twice. Find the mean of your total winnings.

The mean is

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 17:30
Asphere has a diameter of 10 in. what is the volume of the sphere?
Answers: 1
question
Mathematics, 21.06.2019 21:40
The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.
Answers: 1
question
Mathematics, 21.06.2019 22:00
Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.
Answers: 1
question
Mathematics, 21.06.2019 23:30
On the day a coffee shop first opened, it had 140 customers. 65% of the customers ordered a large coffee. how many customers ordered a large coffee? enter your answer in the box.
Answers: 1
You know the right answer?
You roll a die, winning nothing if the number of spots is odd, $3 for a 2 or a 4, and $10 for a 6....
Questions
question
Mathematics, 23.02.2021 08:20
question
Mathematics, 23.02.2021 08:20
question
Mathematics, 23.02.2021 08:20
Questions on the website: 13722360