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- The number of 5-element subsets from a set containing n elements is equal to the number of 6-element subsets from the same set. What is the value of n? (Hint: the order in which the elements for the subsets are chosen is not important.)7-18 are all in the same question, i tried but im getting them wrong and can't figure out why, please help!!In a survey of 84 baseball fans in. NYC, 46 were fans of the Mets, 56 were fans of the Yankees and 35 were fans of both. If you picked one of these 84 baseball fans at random, what is the probibility that they will be a fan of neither?
- Question and its 3 parts are attached with this.A popular gambling game called keno, first introduced in China over 2000 years ago, is played in many casinos. In keno, there are 80 balls numbered from 1 to 80. The casino randomly chooses 20 balls from the 80 balls. These are "lucky balls" because if a gambler chooses some of the numbers on these balls, there is a possibility of winning money. The amount that is won depends on the number of lucky numbers the gambler has selected. The number of ways in which a casino can choose 20 balls from 80 is C(80, 20) = 80! 20! · 60! ≈ 3,535,000,000,000,000,000. Once the casino chooses the 20 lucky balls, the remaining 60 balls are unlucky for the gambler. A gambler who chooses 5 numbers will have from 0 to 5 lucky numbers.Let's consider the case in which 2 of the 5 numbers chosen by the gambler are lucky numbers. Because 5 numbers were chosen, there must be 3 unlucky numbers among the 5 numbers. The number of ways of choosing 2 lucky numbers from 20 lucky numbers is C(20, 2). The…A true or false test consist of 10 questions. If all the questions are answered, in how many different ways ccan this be done?
- A machine produces parts that are either good (80%), slightly defective (10%), or obviously defective (10%). Produced parts get passed through an automatic inspection machine, which is able to detect any part that is obviously defective and discard it. What is the quality of the parts that make it through the inspection machine and get shipped?An instructor teaches three introductory Medicine sections covering the same material. He has made up a different final exam for each section. Still, he suspects that one of the versions is more difficult than the other two. he decides to experiment to evaluate the difficulty of the exams. He randomly selects five volunteers for each class during the review period just before finals. Class 1 volunteers are given version 1 of the exams, Class 2 volunteers get version 2, and Class 3 volunteers receive version 3. Of course, all volunteers are sworn not to reveal any of the exam questions, and also, all of the volunteers will receive a different final exam from the one they took in the experiment. The following are the results. Does this study suffice the assumptions in employing One-way ANOVA in interpreting the results? Explain why or why not?A researcher is given a sample with variables (x,y) where x represents the number of points a player will score in a game and y represents that players height. On this sample the researcher found that the coefficient of determination was 0.887 exoalin and interpret in a single sentence the meaning of this coefficient in terms of the variables x and y
- . Gaydar A study conducted by a team of Americanand Canadian researchers found that during ovulation,a woman can tell whether a man is gay or straight bylooking at his face. To explore the subject, the authorsconducted three investigations, the first of which involved40 undergraduate women who were asked to guess thesexual orientation of 80 men based on photos of theirface. Half of the men were gay, and the other half werestraight. All held similar expressions in the photos orwere deemed to be equally attractive. None of the womenwere using any contraceptive drugs at the time of the test.The result: the closer a woman was to her peak ovulationthe more accurate her guess.(Source: news.yahoo.com/does-ovulation-boost-womansgaydar-210405621.htmlIf student 10 is not selected, then student 5 should be selected how can I represent this constrain in mathematical formThe table lists the number of students from three different high schools participating the mathematics and physics sections of science fairAt alpha = 0.05 test the claim that the section of participation and the high school where the students were from are independent.
