Question

Identify the resulting probability as theoretical or experimental.

One-half of the people in a chess club are adults 21 years old or older. The other half are younger. What is the probability that a club member chosen at random will be under 21 years old?

A.
The experimental probability is 50%.

B.
The experimental probability is 75%.

C.
The theoretical probability is 75%.

D.
The theoretical probability is 50%.

Answer 1

@Whitemonsterbunny17

Answer 2

@Kristen17 @Kkutie7

Answer 3

what percent does one-half represent?
hint \[\\frac{1}{2}] divide them and you get a decimal point... multiply it by 100 see what you get =)

Answer 4

WaitWhat? LOL @Kkutie7

Answer 5

oh shoot *\[\frac{1}{2}\] because this is one half right

Answer 6

I dont know haha @Kkutie7

Answer 7

one half is the same as saying
\[\frac{1}{2}\]
going from this knowledge you can divide them to get a decimal. you can use a calculator.

Answer 8

Do I divide 1/2 with 100?

Answer 9

no just divide 1 by two right now ok... first step =)

Answer 10

Soi did 1 divided by 2 and i got 0.5

Answer 11

ok good to get percent you multiply that by 100

Answer 12

duh its 50 :)

Answer 13

@Kkutie7

Answer 14

50% is half =) so if the class has one-half or 50% under 21 the odds are 50% that you will get someone under 21

Answer 15

Okay so is the answer A?

Answer 16

@Kkutie7

Answer 17

yupp =)

Answer 18

What is the diference between A and D though?

Answer 19

A means you could test it and that would be the answer, theoretically means in theory... or by thought. I would go with that one to be honest.

Answer 20

K TYSMMM