subject
Mathematics, 19.07.2019 15:50 barisegebalci2352

Amultiple-choice test contains 5 questions, each with four answers. assume a student just guesses on each question. a) what is the range of the random variable x, the number of questions the student answers correctly? b) construct the probability mass function for the random variable x, the number of questions that the student answers correctly.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 21:00
Which of the following parabolas opens down?
Answers: 1
question
Mathematics, 21.06.2019 23:30
Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)
Answers: 1
question
Mathematics, 22.06.2019 00:30
You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25
Answers: 2
question
Mathematics, 22.06.2019 03:20
Apolice office claims that the proportion of people wearing seat belts is less than 65%. to test this claim, a random sample of 200 drivers is taken and its determined that 126 people are wearing seat belts. the following is the setup for this hypothesis test: h0: p=0.65 ha: p< 0.65 find the p-value for this hypothesis test for a proportion and round your answer to 3 decimal places.
Answers: 3
You know the right answer?
Amultiple-choice test contains 5 questions, each with four answers. assume a student just guesses on...
Questions
question
Mathematics, 11.10.2019 20:30
question
Mathematics, 11.10.2019 20:30
Questions on the website: 13722367