Sara has 3 choices to get to school: walk, ride a bike, or ride the bus. She has the same choices to get home after school. If Sara randomly
chooses how she is getting to school and home, what is the probability
that she will walk to school and then ride the bus home?

I think the answer is 1/9

Step-by-step explanation:

I did the equations by using a tree diagram to explain it but

21.4 i did it already for s1

step-by-step explanation:

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%