Question
Several psychology students are unprepared for a surprisetrue/false test with 9 questions, and all of their answers are guesses. a. Find the mean and standard
Several psychology students are unprepared for a surprisetrue/false test with 9 questions, and all of their answers are guesses.
a. Find the mean and standard deviation for the number of correct answers for such students.
b. Would it be unusual for a student to pass by guessing(which requires getting at least 6 correctanswers)? Why or whynot?
a. =
(Do notround.)
=
(Round to one decimal place asneeded.)
b. Choose the correct answer below.
A.
No,because6iswithintherangeofusualvalues.
B.
Yes,because6isbelowtheminimumusualvalue.
C.
Yes, because 6 is within the range of usual values.
D.
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