I have four different sweaters. Every day I choose one of the four sweaters at random to wear. Let X be the number of different sweaters I wore during a 5-day week.

(For example, if my 5-day sweater sequence is 3,2,4,4,2 then X = 3 because that week I wore sweaters {2,3.4}.)

Find the mean of X.

Mean is 6

Step-by-step explanation:

Mean refers to the average of the observations.

Let X be the number of different sweaters I wore during a 5-day week.

Possible values of X = 1, 2, 3, 4

For X = 1,

For X = 2,

For X = 3,

For X = 4,

To find: Mean

Solution:

you can't solve x because it is 2 linear equation and you only have one equation

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol