1. In 1-3 sentences, define each of the following terms in your own words and provide an example: a. Bias b. Odds c. Favourable outcome
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- Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 143 subjects with positive test results, there are 30 false positive results. Among 155 negative results, there 3 false negative results. Complete parts (a) through (c). (Hint Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study wasSelect the correct answer from the drop-down menu. "We Wear the Mask" is a poem written in 1895 by the African-American poet and novelist Paul Laurence Dunbar (1872-1906). The poem reflects the experience of being black in America following the Civil War. Black Americans continued to experience intense racism and hardship during this period. Read this excerpt from the poem and answer the question that follows: We wear the mask that grins and lies,It hides our cheeks and shades our eyes, —This debt we pay to human guile;With torn and bleeding hearts we smile,And mouth with myriad subtleties. Why should the world be over-wise,In counting all our tears and sighs?Nay, let them only see us, whileWe wear the mask. We smile, but, O great Christ, our criesTo thee from tortured souls arise.We sing, but oh the clay is vileBeneath our feet, and long the mile;But let the world dream otherwise,We wear the mask! What effect does the poet achieve by repeating the phrase "We wear the mask"…Suppose a university has only one women's softball scholarship remaining for the coming year. The final two players that the university is considering are Allison Fealey and Emily Janson. The coaching staff has concluded that the speed and defensive skills are virtually identical for the two players, and that the final decision will be based on which player has the best batting average. Crosstabulations of each player's batting performance in their junior and senior years of high school are as follows. Outcome Allison Fealey Junior Senior Hit 15 80 No Hit 25 175 Total At-Bats 40 255 Outcome Emily Janson Junior Senior Hit 75 35 No Hit 130 85 Total At-Bats 205 120 A player's batting average is computed by dividing the number of hits a player has by the total number of at-bats. Batting averages are represented as a decimal number with three places after the decimal. (Round your answers to three decimal places.) (a) Calculate the batting average for each…
- Select the correct response. For a research study, there are five options for the first question, four options for the second question, and three options for the third question. Using a list, there would be outcomes for the sample space. For a similar study, if there are only four options for the first question, the sample space would have outcomes.An English class consists of 24 students, and five are to be chosen to give speeches in a school competition. In how many different ways can the teacher choose the team, given the following conditions? (a) The order of the speakers is important.(b) The order of the speakers is not important.The two-way table below reflects the responses from a group of middle and high school students regarding cell phones. What is the best interpretation of the number "25" in the table? would It be There are 25 people have a cell phone 25% of the people are 10 to 12 year old's Out of all 170 people surveyed, only 25 have a cell phone or There are 25 ten to twelve year old's that have a cell phone
- A. Multiple-Choice Tests Professor Easy's final examination has 13 true-false questions followed by 2 multiple-choice questions. In each of the multiple-choice questions, you must select the correct answer from a list of six. How many answer sheets are possible? ____ = choices B. Marbles A bag contains three red marbles, four green ones, one lavender one, three yellows, and three orange marbles. How many sets of four marbles include all the red ones? ___ = sets ANSWER BOTH A and BTo help plan the number of meals to be prepared in a college cafeteria, a survey was conducted, and the following data were obtained. 127 students ate breakfast.183 students ate lunch.272 students ate dinner.60 students ate breakfast and lunch.111 students ate breakfast and dinner.90 students ate lunch and dinner.53 students ate all three meals. How many students ate (a) At least one meal in the cafeteria? students(b) Exactly one meal in the cafeteria? students(c) Only dinner in the cafeteria? students(d) Exactly two meals in the cafeteria? studentsTwelve classmates are taking a picture side by side. A. In how many ways can they take the picture if there are not restrictions? B. In how many ways can they take the picture if two best friends must stand side by side? C. Using the results from A and B, in how many ways can the best friends not stand side by side?
- 3. Rachel has a large number of songs on her music player. The song lengths, in minutes, are summarized in the boxplot below. Rachel decided to listen to ten songs each morning. She set the music player to select the songs at random. The boxplots below summarize song lengths for Monday, Tuesday, and Wednesday of that week. Samples of 10 songs Rachel's Songs Length (minutes) Lergih ininu Of the following 4 statements - 2 of them are true. Identify which are true. Then write 2 sentences explaining your choices. Something must be wrong with the music player, because the boxplots for Monday, Tuesday, and Wednesday all look very True or True or The song lengths varied less on Wednesday than the song lengths on Monday or Tuesday. False False different.- True or At least 55% of the songs will have a True or The song lengths for Monday will have a False song length greater than minutes. False mean less than median.a.What decision can you make? b. What does that decision mean? c. What type of error could you be making, and what would it mean?
