Mathematics, 17.07.2019 04:10 coco9972

A true/false test has 80 questions. a passing grade is 63% or more correct answers. a. what is the probability that a person will guess correctly on one true/false question? b. what is the probability that a person will guess incorrectly on one question? c. find the approximate probability that a person who is just guessing will pass the test. d. if a similar test were given with multiple-choice questions with four choices for each question, would the approximate probability of passing the test by guessing be higher or lower than the approximate probability of passing the true/false test? why?

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 14:30, lyss12326

Which of the following lines is parallel to x=4? a- 3y=9 b- y=4 c- x=2 d- x=y answer this as soon as possible xoxo lo ; )

Answers: 3

continue

Mathematics, 21.06.2019 14:30, Melymarrupe1345

Name the quadrilaterals that have four equal sides.

Answers: 1

continue

Mathematics, 21.06.2019 23:00, ManBun99

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Answers: 2

continue

Mathematics, 21.06.2019 23:00, cifjdhhfdu

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs

Answers: 2

continue

You know the right answer?

A true/false test has 80 questions. a passing grade is 63% or more correct answers. a. what is the p...