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
Mathematics, 21.06.2019 18:00
Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.
Answers: 1
Mathematics, 21.06.2019 20:00
The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false
Answers: 1
Mathematics, 21.06.2019 22:30
If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b
Answers: 1
A true/false test has 80 questions. a passing grade is 63% or more correct answers. a. what is the p...