Mathematics

Mathematics, 05.07.2019 08:20, kingjaheem4109

No 16 students in your spanish class the teacher randomly chooses one student at a time to take a warble exam what is the probability you're not one of the first four students chosen

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Mathematics, 09.10.2019 19:00, Martinez6354

Aprofessor decides to run an experiment to measure the effect of time pressure on final exam scores. he gives each of the 400 students in his course the samefinal exam, but some students have 90 minutes to complete the exam while others have 120 minutes. each student is randomly assigned one of the examinationtimes based on the flip of a coin. let denote the number of points scored on the exam by the student (0 100), let denote the amount of time that the student has to complete the exam ( = 90 or 120), and consider the regression modelyiith≤yi≤xixi , = ++yiβ0β1xiui= 0euiwhich of the following are true about the unobservable ? (check all that apply )uia. represents factors other than time that influence the student's performance on the exam.uib. will be zero for all students because time spent studying is likely the only factor that affects exam performance. uic.all students will necessarily have the same value of because they are part of the same population. uid.different students will have different values of because they have unobserved individual specific traits that affect exam performance.

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Chemistry, 10.10.2019 04:10, haleysmith3456

In your classroom there are 45 students, assume that none of them is born on february 29, and hence consider only common years (365 days) (do not consider leap years). 1- take a student randomly from the class, what is the probability that he have the same birthday as yours? 2- what is the probability that there is at least one student in the class having the same birthday as yours? 3-what is the probability that there is no repeated birthday date in the class all the 45 birthdays being different)? comment on the value you found 4- the instructor decides to nominate 5 students randomly to deliver a presentation next class, • how many groups of five students) are possible? • what is the probability that you are among the selected students?

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Mathematics, 11.10.2019 23:40, avirostko725

There are 16 students in your spanish class. you teacher randomly chooses one student at a time to take a verbal exam. what is the probability you are not one of the first four students chosen?

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Mathematics, 01.11.2019 05:31, jake9919

Mr. parietti needs two students to him with a science demonstration for his class of 18 girls and 12 boys. he randomly chooses one student who comes to the front of the room. he then chooses a second student from those still seated. what is the probability that both students chosen are girls? enter your answer as a fraction in the form a/b (for example 2/3, 5/7) or as an integer.

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