Question

In: Statistics and Probability

On average, your professor typically calls on a student every 5 minutes throughout class time. He...

On average, your professor typically calls on a student every 5 minutes throughout class time. He does not call on the same student twice in a class. Assuming that class is 75 minutes long and there are 32 students in the class, what is the probability that you will not be called upon during class? Does this situation qualify as a Bernoulli Trial? (2 points)

Solutions

Expert Solution

orchestra answered 2 years ago
Next > < Previous

Related Solutions

A telephonist claims that he gets 10 calls every five minutes. To demonstrate this to his boss he makes a tape lasting five minutes. What are the probabilities that he gets:
Question 7A telephonist claims that he gets 10 calls every five minutes. To demonstrate this to his boss he makes a tape lasting five minutes. What are the probabilities that he gets:(a) no calls in the five minutes; (2)(b) less than three calls; and (5)(c) exactly 10 calls? (2) [9] Question 8Assume that matric marks are standardised to have a mean of 52% and a standard deviation of 16% (and assume that they have a normal distribution). In a class...
You were the top student in your physiology class last semester. For this reason, your professor...
You were the top student in your physiology class last semester. For this reason, your professor has asked that you prepare some lectures for her physiology class this semester. Specifically, she would like you to discuss the similarities and differences between the cardiovascular and respiratory systems, in terms of pressure gradients and fluid flow. A. Explain how you will describe the role of the following structures: the pump and the tubes. B. Explain how you will describe the importance of...
5.) The average time to run the 5K fun run is 21 minutes and the standard...
5.) The average time to run the 5K fun run is 21 minutes and the standard deviation is 2.7 minutes. 45 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. What is the distribution of XX? XX ~ N(,) What is the distribution of ¯xx¯? ¯xx¯ ~ N(,) What is the distribution of ∑x∑x? ∑x∑x ~ N(,) If one randomly selected runner is timed, find...
The average number of minutes Americans commute to work is 27.7 minutes. The average commute time...
The average number of minutes Americans commute to work is 27.7 minutes. The average commute time in minutes for 48 cities are as follows. Albuquerque 23.6 Jacksonville 26.5 Phoenix 28.6 Atlanta 28.6 Kansas City 23.7 Pittsburgh 25.3 Austin 24.9 Las Vegas 28.7 Portland 26.7 Baltimore 32.4 Little Rock 20.4 Providence 23.9 Boston 32.0 Los Angeles 32.5 Richmond 23.7 Charlotte 26.1 Louisville 21.7 Sacramento 26.1 Chicago 38.4 Memphis 24.1 Salt Lake City 20.5 Cincinnati 25.2 Miami 31.0 San Antonio 26.4 Cleveland...
A professor has a teaching assistant record the amount of time (in minutes) that a sample...
A professor has a teaching assistant record the amount of time (in minutes) that a sample of 16 students engaged in an active discussion. The assistant observed 8 students in a class who used a slide show presentation and 8 students in a class who did not use a slide show presentation. With Microsoft PowerPoint Without Microsoft PowerPoint 6 4 11 14 10 18 7 21 19 8 9 12 15 13 5 23 Use the normal approximation for the...
A professor has a teaching assistant record the amount of time (in minutes) that a sample...
A professor has a teaching assistant record the amount of time (in minutes) that a sample of 16 students engaged in an active discussion. The assistant observed 8 students in a class who used a slide show presentation and 8 students in a class who did not use a slide show presentation. With Microsoft PowerPoint Without Microsoft PowerPoint 11 19 10 8 18 12 6 9 5 23 4 7 13 14 15 21 Use the normal approximation for the...
The previous average response time for emergency vehicles was 5 minutes. A recent sample found the...
The previous average response time for emergency vehicles was 5 minutes. A recent sample found the following response times (minutes): 4.23   5.14   4.85   3.25   1.56   6.22   5.05   4.23   3.89   3.33   2.85   5.56   2.50 A. What is the average response time for the sample? B. What is the standard deviation for all samples of response times of this sample size? C. Assuming α = 2.5%, what is the value of the test statistic for this hypothesis test? D. What is the...
Intercultural Communication. A college professor has a new student from China in the class. The student...
Intercultural Communication. A college professor has a new student from China in the class. The student does not speak English fluently. Name and discuss three cultural factors that might influence classroom interaction
The management requested that a rollercoaster ride time shouldn’t take longer than 5 minutes on average;...
The management requested that a rollercoaster ride time shouldn’t take longer than 5 minutes on average; 10 volunteers recorded their rollercoaster ride time (in seconds). They reported the following set of data: Name Time Z-Score         Simpson 300 Scott 290 Maurice 320 Dario 310 Vincent 390 Daniel 380 Alexander 375 Toni 290 Ivan 260 Johan 300 a. Calculate the following descriptive statistics (Briefly explain). NOTE: you can use Excel in your computation. Mean Median Mode Who’s time is in the lowest...
A statistics professor believes that the amount of time a student spends studying is predictive of...
A statistics professor believes that the amount of time a student spends studying is predictive of their test scores. The professor obtains study time (in hours per week) and test grades from a random sample of 9 students. The data is presented in the table below: Hours Spent Studying Per Week Test Scores 11 80 2 37 1 14 4 66 3 43 5 52 7 96 6 51 3 44 ΣX= ΣX2= ΣY= ΣY2= ΣXY= 1A. Create the regression...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT