For the following questions circle your answer and show all work. Solutions w ma

Question

For the following questions circle your answer and show all work. Solutions w may not receive credit. ithout work or reasoning 14. A multiple choice quiz has three questions, each with five answer choices. One answer is correct. You have no idea what the answer is to any question and have to guess each answer Find the probability of answering the first question correctly and all of the remaining questions incorrectly a) b) Find the probability of answering none of the questions correctly. c) Find the probability of answering at least one question correctly 9909 71 .

Explanation / Answer

probability to answer a question correctly =1/5 =0.2

and probability to answer a question incorrectly =1-0.2=0.8

a)

probability =0.2*0.8*0.8 =0.128

b)

probability =0.8*0.8*0.8 =0.512

c)

probability =1-P( asweering all incorrect)=1-0.512 =0.488

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