Question

Fifty students in the fourth grade class listed their hair and eye colors in the table below:

Answer 1

Are the events "green eyes" and "brown hair" independent?

Answer 2

Ya

Answer 3

i have no clue :/

Answer 4

two events A and B are independent iff

\[P(A\cap B)=P(A)P(B)\]


so does...

P(green eyes and brown hair)=P(green eyes)*P(brown hair)?

Answer 5

yes

Answer 6

wait no?

Answer 7

really...show the work based on the data given

Answer 8

im really sorry i suck at stats

Answer 9

start with P(green eyes)=#green eyes/total number people

Answer 10

so 28/50?

Answer 11

yes


now what is the prob of brown hair

Answer 12

30/50?

Answer 13

yep

Answer 14

what is the p( green eyes and brown hair)

Answer 15

16/50???

Answer 16

yes

Answer 17

so is this true...

P(green eyes and brown hair)=P(green eyes)*P(brown hair)?

Answer 18

so are they independent? i dont understand tht part

Answer 19

answer my question

is this true...

P(green eyes and brown hair)=P(green eyes)*P(brown hair)?

Answer 20

no it is not

Answer 21

correct...therefore the events are not independent...they are dependent

Answer 22

yay thank you