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April 23rd, 2013, 03:03 AM   #1
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Probability

A student taking a MC exam with 6 QQ's in which each equation has 4 options, and the student selects the options randomly.
What is the probability that she will get 6 qq's correct? Round to 4 decimal places as needed.
Can someone please explain to me, on how to work this out? I'm quite confused ~~".

0.25% chance in getting one qq right.
X6?
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April 23rd, 2013, 02:40 PM   #2
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Re: Probability

Quote:
Originally Posted by HungerGames1
A student taking a MC exam with 6 QQ's in which each equation has 4 options, and the student selects the options randomly.
What is the probability that she will get 6 qq's correct? Round to 4 decimal places as needed.
Can someone please explain to me, on how to work this out? I'm quite confused ~~".

0.25% chance in getting one qq right.
X6?
.25^6 = 2.4414 x 10^-4
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April 24th, 2013, 09:26 AM   #3
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Re: Probability

If A has probability p and B has probability q, the probability of A and B is pq: p times q. Whoever gave you this problem clearly expects you to know that.
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