Question

The spinner shown is to be spun 40 times.

Which is the best prediction for the number of times the spinner will stop on A or D?



A.
10

B.
20

C.
25

D.
30

Answer 1

the pie was cut into 8 slices right ?

Answer 2

how many of them are "A" ?

Answer 3

okay wait i am confused

Answer 4

i am so confused

Answer 5

think of that circle as pizza or cake

Answer 6

2 a

Answer 7

yes there are 2 A's

Answer 8

wat about D's ?
how many D's are there?

Answer 9

2

Answer 10

so number of slices in favor = 4
total number of slices = 8

probability for stopping on A or D = 4/8
= 1/2

Answer 11

thats the probability if u spin it one time

Answer 12

okay

Answer 13

wat does that tell u ?

Answer 14

chances are 50/50 right ?

Answer 15

ya

Answer 16

when u spin it 40 times, how many times do u expect it to stop on A or D?

Answer 17

it think D

Answer 18

think again, keep in mind that chances are 50/50

Answer 19

or A

Answer 20

the correct answer is actually 20

Answer 21

ohhhh

Answer 22

half the time the spinner is stopping on A or D

Answer 23

50/50 means that ^

Answer 24

so the answer is 20 right

Answer 25

yes !