Question

The probability distribution of X is given in the table.

Which statement is true?

Answer 1

@rational

Answer 2

where are the statements ?

Answer 3

start by finding the mean

Answer 4

.2?

Answer 5

how

Answer 6

to calculate the mean of distribution,
simply multiply the value by corresponding probability
then add up

Answer 7

multiply each of those pairs
then add them

Answer 8

oh shoot. 1.8 sorry

Answer 9

try again

Answer 10

2.5

Answer 11

try again

Answer 12

How?? Um....

Answer 13

im getting 2.8

Answer 14

double check ur calculation

Answer 15

I have twice. Hmm I will one more time real fast

Answer 16

yes okay 2.8.

Answer 17

I kept putting it in the calc wrong.

Answer 18

good, save it.
now work the average of possible values of x

Answer 19

simply add them up
then divide by 5

Answer 20

you divide them by 5 beacause there are 5 of them

Answer 21

3

Answer 22

Yes!

Answer 23

so we have :

mean of the distribution = 2.8
average of the possible values of x = 3

Answer 24

look at the options

Answer 25

C

Answer 26

Yep!