Find the probability. A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting exactly five twos.
A. 0.129

B. 0.921

C. 0.003

D. 0.083

Question

Find the probability. A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting exactly five twos. 
 A. 0.129  
 
 B. 0.921  
 
 C. 0.003  
 
 D. 0.083

anonymous · Answer

use bernaulli's principle!

anonymous · Answer

Assuming it's a standard 6-sided die, the probability to roll a 2 is 1/6. Since you want five twos, multiply 1/6 five times. Or, (1/6)^5.

anonymous · Answer

I maybe wrong. But it's something along those lines I think.

anonymous · Answer

i got 1.28600823r-4.........
i dont think thats the answer..

anonymous · Answer

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