Question

An exam consists of 10 true-or-false questions. If a student guesses at every answer, what is the probability that he or she will answer exactly 6 questions correctly? (Round your answer to three decimal places.)

Answer 1

p(x) = (10C6) * (1/2)^10

Answer 2

p(10) = (10C6) * (1/2)^10

Answer 3

how to do you put in the calculator (10c6)?

Answer 4

10C6=10!/(10-6)!6!

Answer 5

you should have a function on your calculator to put it in like that i dont know what calc you have but i recommend goggling how to put it in using your calc

Answer 6

thanks

Answer 7

no problem