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## NEED HELP 25 POINTS ! A special 8-sided die is marked with the numbers 1 to 8. It is rolled 15 times with the results shown in the ta

Question

NEED HELP 25 POINTS !

A special 8-sided die is marked with the numbers 1 to 8. It is rolled 15 times with the results shown in the table.

Results 3 4 5 2 7 1 3 7 2 6 2 1 7 3 6

The experimental probability of rolling an odd number is

%, which is

% more than the theoretical probability.

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Mathematics
3 years
2021-07-17T23:28:04+00:00
2021-07-17T23:28:04+00:00 2 Answers
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## Answers ( )

Answer:Step-by-step explanation:Theoretical odds of rolling an odd number is 4/8 = 50%

The experimental probability of rolling an odd number is 9/15 = 60 %

which is (60 – 50) / 50 = 20% more than the theoretical probability.

This is an imprecisely worded question as 60% is 10% more than 50%

but the number of actual odd numbers rolled is 20% more than was theoretically expected.

Expected 7.5 odd numbers

1.20(7.5) = 9 actual odd numbers

Not sure which answer is sought.

Answer:Step-by-step explanation:Of the twenty times in this experiment the following are prime (3,5,2,7,3,7,2,2,7,3,3,5) or 12 of the twenty

12/20 = 6/10 = 60%

So 60% is the experimental probabilty.

The theoretical probability given that there are four prime numbers (2,3,5,7) out of 8 on the dice should be 50% because 1/2 of the numbers are prime.

The experimental probability is 10% more than the theoretical probability

60% – 50% = 10%