Question

How many ways can a student do a ten-question true-false exam if he or she can choose not to answer any number of questions?

Answer #1

A student is taking a true/false exam with 17 questions. If he
guesses on each question, what is the probability he will get at
least 14 questions correct?

How many:
ways can an exam consisting of 10 true and false questions be
answered?
ways can an exam consisting of 5 true and false questions
followed by 2 multiple choice questions with four choices each be
answered?
4-digit numbers are there?
New York license plates can be made that consist of 3 letters
followed by 4 numbers?
New York license plates can be made that consist of 3 letters
followed by 4 numbers given the restriction that if the...

A student must answer five questions on a quiz that contains ten
questions. How many ways are there if the student must answer the
first and last question?

An exam consists of 10 true-or-false questions. If a student
guesses at every answer, what is the probability that he or she
will answer exactly 6 questions correctly? (Round your answer to
three decimal places.)

A student takes an exam containing 13 true or false questions.
If the student guesses, what is the probability that he will get
exactly 2 questions right? Round your answer to four decimal
places.

A student takes an exam containing 15 true or false
questions. If the student guesses, what is the probability
that he will get exactly 4 questions right? Round
your answer to four decimal places.

A student takes an exam containing 10 true or false questions.
If the student guesses, what is the probability that he will get
less than 6 but more than 3 questions right? Round your answer to
four decimal places.

In
how many ways can a student select 8 out of 10 questions to work on
an exam?

A student takes an exam containing 11 true or false questions
if the student guesses what is the probability that he will get
less than six but more than three questions right

A student is asked to answer seven of ten questions on a test.
How many different ways can a selection of questions occur if:
a) there are no restrictions?
b) if there are five questions that must be answered? (5
questions must be done so you have to do 2 of the last 5)

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