Question

helppppp what is the probability of getting heads when flipping a coin and getting a number greater than or equal to 3 when rolling a single die

Answer 1

So P(heads and #>=3)
this are two independent events
first let's see what is the P(of head)=1/2
1 in two chances right?

Answer 2

we have 6 side in the die so total chances
numbers that are greater or equal to 3 are 3,4,5,6
so 4/6 4 in 6 chances. are you following?

Answer 3

yeah and rolligna die is 1/6 ?

Answer 4

oh

Answer 5

1/6 chance for each side that is

Answer 6

they are asking event that a number greater than or equal to 3 to occurs in this experiment
do you get it?

Answer 7

Now you can use this P(A and B)=P(A).P(B)
okay?

Answer 8

yes i think

Answer 9

A event that we get head
B event that we get a number greater than or equal to 3

Answer 10

we have already got P(A) and P(B)
just multiply

Answer 11

can you do it?

Answer 12

yeah but i dont see where it says what p(a) and p(b) are is it the fraction?

Answer 13

P(head)=1/2 i did it above
P(#>=3)=4/6=2/3 also i did it above
P(head and #>=3)=P(Head)P(#>=3)

Answer 14

i was just linking the P(A and B)=P(A).P(B) that you studied with this

Answer 15

is the answer 1/3

Answer 16

Correct!

Answer 17

ok thanks!!!!

Answer 18

You're welcome! you are good to go with this problems haha

Answer 19

just apply the same thing in case of independent events