# Q: to ef 4. A multiple choice quiz to be given to a particular section of IMSE
ID: 3044359 • Letter: #
Question
# Q: to ef 4. A multiple choice quiz to be given to a particular section of IMSE 317 has 10 questions on it, each with 4 possibilities (a, b, c, and d). Suppose a particular student has not attended class and has not looked at the book but shows up to class for the first time the day of this quiz so he/she just guesses at each answer. The instructor says students need a score of or more to pass the quiz. What is the probability this student will pass this first quiz? inomic al n lo 13s able 5. A large super market chain studied customers arriving at their service desk and found that, on average, 1 customer uses the service desk every 15 minutes. (a) What is the probability that during the next hour exactly 2 customers use the service desk?Explanation / Answer
a) n=10 and p=1/4
P(5 or more correct) = 1-P( x<=4) = 1-0.75^10-10*0.25*0.75^9-45*0.25^2*0.75^8-120*0.25^3*0.75^7*210*0.25^4-0.75^6= 0.0911
Pleas repost the second question individually
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