Question

PLEASE HELP WILL GIVE MEDAL!

Answer 1

@jeremyggg

Answer 2

well, we should try and break this down piece by piece, as math word problems are always harder than they appear. What is the experimental probability of rolling a 3? Do you understand what this is asking?

Answer 3

well you should know the theoretical probability

P(3) = 1/6

experimental

P(3) = No of 3/total number of rolls

Answer 4

not really thats why i need help

Answer 5

ok

Answer 6

Hi Js7474, since this is a cube. You can think about it as a die. There is 1/6 chance of getting a 3. This is the theoretical probability. The experimental would be 67/450.

Answer 7

but's thats assuming there all faces of the cube have different numbers... including a 3... and all outcomes are equally likely

which isn't mentioned

Answer 8

Well I think it is a safe assumption. Otherwise they would have given different conditions.

Answer 9

lol... well I'd say its an extremely poorly written question.... not much thought given to supplying a student will the relevant information

Answer 10

The theoretical is the math probability. what do the numbers tell you should happen? if for example there is 6 different numbers on the cube (like a dice) and one of them is a 3, you have
\[\frac{ Number of 3's on dice }{ number of numbers on dice}\]
The experimental is exactly what it sounds like! The trial you did! you rolled it 450 times and a 3 came up 67 times!
\[\frac{ number of 3's }{ number of rolls }\]

Answer 11

ok im getting it a little but im still confused

Answer 12

for something like probability it is usually going to be this form.
\[\frac{ What you are looking for }{ maximum number }\]

Answer 13

well, there are ALWAYS 6 faces on a cube, so we are to assume dice. 1 2 3 4 5 6 are going to be the numbers on this die. what is the probability of rolling a 3? this is the theoretical probability. the theoretical makes it appear that if i roll the die 6 times I should roll at least one 3. but... if you roll 6 times in your experiment, you may not roll a 3 for 15 rolls! this is how they are different.

Answer 14

thanks

Answer 15

I am guessing you already have the answer right? I believe statsguy gave you the solution to simplify?

Answer 16

yes lol

Answer 17

Remember to always let me know when i am not being clear! It's hard to judge what you are understanding or not understanding based on replies, and math can be really tricky at first!

Answer 18

thanks