Question

a coin is loaded so that the probability of getting a heads is 3/4 if the coin is flipped twice what is probability of getting head twice

Answer 1

\(\frac{3}{4}\times \frac{3}{4}\)

Answer 2

cross multiply?

Answer 3

there is no such thing as "cross multiply" no matter what those math teachers told you
it does not exist
multiply means multiply
for fractions that means straight across

Answer 4

\[\frac{a}{b}\times \frac{c}{d}=\frac{a\times c}{b\times d}\]
\[\frac{3}{4}\times \frac{3}{4}=\frac{3\times 3}{4\times 4}\]

Answer 5

\[3/4*3/4=(3*3)/(4*4)=9/16\]

Answer 6

yes 9/16

Answer 7

that is it, yes

Answer 8

i need to simplify that right

Answer 9

i am going to sneak out one day and smack every math teacher that ever said "cross multiply" "cross cancel" and "simplify"
there is no such thing
you can in some cases "reduce to lowest terms" but not in this case because there are no common factors of \(9\) and \(16\)

Answer 10

that is not a answer choice

Answer 11

It is, however, the correct answer. Is 0.5625 an answer choice?

Answer 12

that's too bad
what are the choices?

Answer 13

wait yes it is! sorry thanks!!

Answer 14

Good luck! :)