A spinner has three congruent sections numbered 1, 2, 3. Yolanda made 50 spins of this spinner and recorded the outcomes in this table. Outcome Number 1 15 2 19 3 16 What is the theoretical probability of the spinner stopping on 2? What is the experimental probability of the spinner stopping on 2? A. Theoretical - 33.3% Experimental - 19% B. Theoretical - 33.3% Experimental - 38% C. Theoretical - 38% Experimental - 33.3% D. Theoretical - 16.7% Experimental - 19%
i will fan and medal
@jagr2713 @10115658 @TINY10207
pls help
Theoretical is the percent that you expect the spinner to land on 2. Experimental is the amount it actually did
theoretical = # of sections with 2/ total number of sections
so im still confused what are the steps to get thae answer for theritcal
I'll walk you through it. How many sections are there on the spinner?
thanks 3 sections
Ok. and how many of them are numbered 2?
19
not quite. A picture always helps |dw:1432327682146:dw|
Out of the 3 sections, only 1 of them has 2 on it. Does that make sense?
oh yeah i get that
So the theoretical probability is 1/3 since 1 of the 3 spaces has "2"
ok i understand that
Great. For experimental, they spun 50 times. The table is saying that it landed on "1" 15 times, landed on "2" 19 times, and landed on "3" 16 times
Experimental = # of spins that landed on 2 / total number of spins
so 2/3
is that right
19 spins out of 50 landed on "2". How would you write that as a fraction?
or percent
i got to go but i tbhing i understand thanks
yw
Join our real-time social learning platform and learn together with your friends!