luck6021 luck6021

10-08-2018
Mathematics

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a true or false test has five questions if you guess the answers what is the probability that you will get exactly four corret?

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bawbdmo bawbdmo

10-08-2018

You have a 1/2 chance of getting any question right or wrong. If you want 4 right questions and 1 wrong question, the probability would be:

[tex] \frac{1}{2}^4*\frac{1}{2}=\frac{1}{2}^5=\frac{1}{32} [/tex]

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