6. In a group of 60 people, 27prefer cold drinks and 42 preferhot drinks, with eachparticipant preferring at leastone of the two. How do we findthe number of individuals whoenjoy both coffee and tea?Let ASet of peopie who lke cold dris- Set of people who re hot diniaAn (ANB) =n (A) + n(B} - njA U B)B.n (ANB) =n (A U B) - n (A) + n(B)B.C.n (AN B) -n (AU B) + nA - riB)D.n (ANB) =n (AUB) + n(B) -n(A)D.

6. In a group of 60 people. 27 prefer cold drinks and 42 prefer hot drinks, with each participant…

Answered: one of the two. How do we find the…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Professor Fair believes that extra time does not improve grades on exams. He randomly divided a group of 300 students into two groups and gave them all the same test. One group had exactly 1 hour in which to finish the test, and the other group could stay as long as desired. The results are shown in the following table. Test at the 0.01 level of significance that time to complete a test and test results are independent. Time A B C F Row Total 1 h 22 41 65 12 140 Unlimited 17 49 86 8 160 Column Total 39 90 151 20 300 (ii) Find the sample test statistic. (Round your answer to two decimal places.)
Power. Determine the power of a test of H0: p = 0.10 when: (a) p is actually 0.20, α = 0.05 (two-sided), and n = 25. (b) p is actually 0.15, α = 0.01 (two-sided), and n = 100.
What is the mode? 9 12 16 17 26 32 32 32 32 32 37 38
Scientist give two different treatment to people who have the flu and determine if their health improves. The results for the test are in the two way table. A. What percentage of people receiving treatment 1 had improved health. B. What percentage of people receiving treatment to had improved health.
Over the span of a month, a school tracks student choices at lunch. They find that 56% of all students buy milk with lunch and 32% buy a piece of fruit. If 22% of all students buy both milk and fruit, which of the following represents the percent of students who buy neither? (1) 28% (3) 42% (2) 34% (4) 46%
(a) Suppose I have a bag with 4 marbles. One is red and 3 are green. Pick one marble, note the color and then put it back and pick a second marble. Find P(Both Red) = Explain your reasoning. P(Both Green) = %3D %3D
ge 2: Has the proportion of Americans that are "20-somethings" decreased? According to the US Census Bureau, 14.8% of Americans living in 2004 were "20- somethings" (between ages 20 and 29). You take a random sample of 500 Americans and find that 59 of them fall in this age range. Has the proportion of Americans ages 20-29 decreased from what it was in 2004? for this problem (z-test or t-test).
R3.42. Internet speed Carsten, Matt, and Rainer designed an experiment to see how different environments affect the Internet speed around campus. They used their own Mac computer and a PC belonging to the school and tested each in two different libraries, the main and the science library. Other factors included Time of Week (weekday or week- end), Time of Day (before or after 5 PM), and how busy the computer was (running other jobs or not). The measured the time it took to download a 50 Mb file from the school course management system. a) Name the factors and levels. b) How many runs will they need to run all treatment levels? c) In what order should they perform all the runs?
Need C and D please
Please answer 6.2 only

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one of the two. How do we find the number of individuals who enjoy both coffee and tea?