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anonymous
 5 years ago
A prize wheen with a equal sectors numbered from 0 to 36 is spun 400 times. A prime number is the outcome 125 times. a) what is the theoreticcal probability of spinning a prime number? b) In 400 spins, how many times would you expect a prime number to occur ? c) compare your answer to part a) and part b) 4:59 pm
anonymous
 5 years ago
A prize wheen with a equal sectors numbered from 0 to 36 is spun 400 times. A prime number is the outcome 125 times. a) what is the theoreticcal probability of spinning a prime number? b) In 400 spins, how many times would you expect a prime number to occur ? c) compare your answer to part a) and part b) 4:59 pm

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sandra
 5 years ago
Best ResponseYou've already chosen the best response.0ok so first question is, how many numbers are prime in 0 through 36?

sandra
 5 years ago
Best ResponseYou've already chosen the best response.02, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31

bahrom7893
 5 years ago
Best ResponseYou've already chosen the best response.01,2,3,5,7,11,13,17,1..aww u bet me to it lol

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0haha it's all good :p, took me a while

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0is it will be 11/ 36?

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so if there are 11 prime numbers between 0 and 36, what is the probability of a single spin landing on a prime number?

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0probability = (possibilities of a prime)/(total number of possibiliies)

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0close! one problem is 036 is actually 37 numbers, since zero counts too :p

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so 11/37 is the answer to a

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so how do you think you get the answer to b?

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0well, if I told you to flip a coin twice, how many times would you expect it lands heads, and how many times tails?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.01 head or 1 tails .. lol

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0exactly  and the same principle applies here

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so the probability of a coin landing heads is 1/2, since there are two sides, and heads is only one of them

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so if you flipped it twice, you'd expect 1/2 * 2 heads to show up

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so now if the probability of spinning a prime is 11/37, how many primes would you expect to spin if you spun 400 times?

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0it's the same thing "probability of it happening once" x "number of attempts"

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so you would expect 118.92 primes

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0you forgot a zero on the top

sandra
 5 years ago
Best ResponseYou've already chosen the best response.011/37 x 400 = (400*11)/37 = 118.92

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so you would expect to spin 119 or so prime numbers

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0that's less than the 125 that were spun in the problem example  but within reason

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so part (c) is  that person spun more primes than you'd expect, but not unreasonably so

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how did you even get 118.92?

sasogeek
 5 years ago
Best ResponseYou've already chosen the best response.0just chipping in if yo don't mind... my msn got messed up. fixed now :)

sasogeek
 5 years ago
Best ResponseYou've already chosen the best response.0though i can't answer this question now, looks like its already solved but i'll try it on my own :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0A card is chosen from a deck of cards, recorded, and then replaced. this is done 75 times and red card from 5 to 9 is chosen 21 times. a) what is the theoretical probability of a red card between 5 and 9 being chosen? b) how many times would you expect this event to happen in 75 trials? c) compare your answers to part a) and b)
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