Consider the that exactly 91 out of 158 students will pass their college placement exams. Assume...
consider the probability that no more than 19 out of 158 flights will be delayed. assume the probability that a given flight will be delayed is 13%. approximate the probability using normal distibution.
12. In a Biology class 85% of students pass the midterm exam. If a student passes the midterm exam, there is a 75% they pass the final. If a student does not pass the midterm exam, there is a 55% chance of passing the final exam. a. [3] What is the probability that a student passes both exams? b. [3] If a student passes the final, what is the probability that they passed the midterm exam? C. [3] Are the...
Question 5: A mathematics placement test is given to all 1st year students at a small college. A student who receives a grade above 35 must take an extra mathematics course. The placement test scores and the final grades for 20 students who took the regular course were recorded. a. Find the equation of the regression line to predict course grades from placement test scores. b. If 60 is the minimum passing grade, below which placement test score should students...
An exam has a pass rate of 45%. What is the probability of exactly 4 out of 9 people passing the exam? Round your answer to two decimal places.
Candidates are applying for an elite college. From prior statistics we know that white students have an acceptance rate of 24% while Asian students have an acceptance rate of only 17%. A random sample of 100 White students and 100 Asian students were selected. Let X be the number of White applicants (out of the 100) who are accepted. Let Y be the number of Asian applicants (out of the 100) who are accepted. Question 1 of 4 Which of...
At your college 30 % of all students are from out of state. If you randomly select 15 of these students, what is the probability that: A. All are from within the state? B. All from out of state? C. Exactly two are from within the state? D. At least 5 are from within the state? Please show how to work out the problem, it helps a lot. Thank you!
Consider the probability that greater than 9191 out of 147147 software users will not call technical support. Assume the probability that a given software user will not call technical support is 61%61%.Approximate the probability using the normal distribution. Round your answer to four decimal places.
Consider the probability that fewer than 19 out of 156 students will not graduate on time. Assume the probability that a given student will not graduate on time is 8% Approximate the probability using the normal distribution. Round your answer to four decimal places.
Assume that any student has a 25% chance of getting into a certain college. Let the random variable X denote the number of students (from a total of 5 students who apply) who get into the school. For the following problems do not use calculator commands. a. What are the parameters n and p for the distribution? b. What is the expected number of students (out of the 5) who will be accepted to the school? c. Find the standard...
Consider the situation where someone takes out a loan for $30,000 to pay for college. Assume the loan has an annual interest rate of 4% compounded monthly. Assume that person pays $400 a month to pay off the loan. (a) How long will it take for the person to pay off the loan? (b) If the person was only able to pay $150 a month, how long will it take to pay off the loan? (c) What is the minimum...