Mathematics, 21.05.2020 07:02, saltytaetae
4. A small high school holds its graduation ceremony in the gym. Because of seating constraints, students are limited to a maximum of four tickets to graduation for family and friends. The vice principal knows that historically 30% of students want four tickets, 25% want three, 25% want two, 15% want one, and 5% want none. (a) Let X ¼ the number of tickets requested by a randomly selected graduating student, and assume the historical distribution applies to this rv. Find the mean and standard deviation of X. (b) Let T ¼ the total number of tickets requested by the 150 students graduating this year. Assuming all 150 students’ requests are independent, determine the mean and standard deviation of T. (c) The gym can seat a maximum of 500 guests. Calculate the (approximate) probability that all students’ requests can be accommodated. [Hint: Express this probability in terms of T. What distribution does T have?]
Answers: 2
Mathematics, 21.06.2019 18:50, potato3999
Aresearch group wants to find the opinions’ of city residents on the construction of a new downtown parking garage. what is the population of the survey downtown shoppers downtown visitors downtown workers city residents
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Mathematics, 21.06.2019 21:30, hammackkatelyn60
Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter
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Mathematics, 21.06.2019 22:20, abbygriffin8575
Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)
Answers: 2
4. A small high school holds its graduation ceremony in the gym. Because of seating constraints, stu...
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