i need clear writing 3. (9 Marks) The length of time required by students to complete...
(9 Marks) The kength of time required by students to complete a one-hour xam is a random variable with a probability density function (pdf) given by f(x) + OSX S1 a) Find the value and write down the new pilf (points) b) Find the probability that a randomly selected student will finish in less than half an hour. (3 points) c) Find the mean and standard deviation of the distribution (4 points) SD
(4) The time required to complete a final exam in a particular college course is normally distributed with a mean of 75 minutes and a standard deviation of 15 minutes. Answer the following questions: (a) (for a randomly selected student) What is the probability of completing the exam in 1 hour or less? (4) (b) What is the probability a randomly selected student will complete the exam in more than 60 minutes but less than 75 minutes? (4b) (c) Assume...
The percentage of students in four different faculty departments A, B, C and D are 40%, 30%, 20%, and 10% respectively. If you know that 80%, 85%, 87%, and 90% of each department students have passed last exam, what is the probability that a randomly selected student has passed the exam. (SMarks) . How many different ways can 3 red. 4 yellow, and 2 blue bulbs be arranged in a string of a ll. Suppose that a random variable X...
On a certain statistics exam, the time for students to submit the exam is normally distributed with a mean of 0.9 hours and a standard deviation of 0.1 hours. What is the probability that a randomly selected student will take longer than an hour and a half to submit the exam? O 0.707 1 0.5 0.0000000001 Page 14 Previous Page Next Page
On a certain statistics exam, the time for students to submit the exam is normally distributed with a mean of 0.9 hours and a standard deviation of 0.1 hours. What is the probability that a randomly selected student will take longer than an hour and a half to submit the exam? O 0.707 O1 0.5 0.0000000001 Page 14 Previous Page Next Page
The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 7 minutes and a standard deviation of 1.2 minutes. Find the probability that a randomly selected college student will take at most 5.5 minutes to find a parking spot in the library lot.
SUCUL IUR. 2. The time that it takes to complete a marathon is modelled by a normal distribution with a mean of 4.547 hours and a standard deviation of 0.634 hours. a) What is the probability that a randomly selected runner will complete the marathon in less than 3 hours and a half? (4 marks) Nantle Urading W Student ID#: b) What is the median finish time in this marathon? (4 mark Student ID#: 000 people participate in 2020 Marathon...
The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 5.5 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will find a parking spot in the library parking lot in less than 5 minutes. O 0.3085 O 0.3551 O 0.2674 O 0.1915
5 and 6 please The length of time it takes collese students to find a parking spot in the library parking lot follows a normal distribution with a mean of 3.0 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will find a parking spot in the library parking lot in less than 2.5 minutes. 6. About 74% of the residents in a town say that they are making an effort to...
The length of time it takes college students to find a parking spot in the library parking lot follows anormal distribution with a mean of 5.5 minutes and a standard deviation of 1 minute. Find theprobability that a randomly selected college student will take between 4.0 and 6.5 minutes to find aparking spot in the library lot.