Question 51 C In a city with three high schools, all the ninth graders took a Standardized Test, with these results: High School Mean Test Score Number of ninth graders (Frequency) Glenwood 81 262 Central 90 330 Lincoln 73 167 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was the average of 81, 90, and 73, which is 81.3. Of course, that is incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place. Mean of all ninth grader's scores =Question 52 The list below shows the ages (in years) of 8 people riding in a van to a math competition. Calculate the mean age of the people in the van. Round your answer to the nearest tenth of a year. ages 10 12 12 13 14 9 10 32 Mean = years (Please round your answer to the nearest tenth.) Median = years (Please enter an exact answer.)Exam #1 review questions Score: 45.45/100 48/100 answered Question 53 On January 1, 2009, Max owed $10,510 to his friend Ashlyn, who was kind enough not to charge Max any interest. Each month during 2009, Max paid Ashlyn some of the money he owed. If Max still owed Ashlyn $3,250 on January 1, 2010, what was the average amount of Max's monthly payments?. Question 54 In California, we need more rain to sustain the health of our natural environment, argriculture, and economic. A group of statistics students in Oxnard College recorded the amount of rain during 2016-2017 school year, measuring the intensity by the inches of rain, and the results were: Inches of Rain 1 2 3 4 5 6 Frequency 3 5 0 3 5 2 The mean (2) rain intensity: inches (Please show your answer to 1 decimal place.) The median rain intensity: inches The mode rain intensity: inches (Please separate your answers by ",' in the bimodal situation. Enter DNE if there is no mode or if there are more than two modes.). Question 55 We are going to calculate the mean, median, and mode for two sets of data. Please show your answer to one decimal place if necessary. Here is the first data set. 96 27 59 29 73 54 88 66 55 96 56 a. what is the mean (2) of this data set? b. What is the median of this data set? C. What is the mode of this data set? Here is the second data set. 32 77 48 88 97 69 77 76 81 84 d. What is the mean (2) of this data set? e. What is the median of this data set? f. What is the mode of this data set?. Question 56 Which statistic (mean, median, or mode) is most appropriate in each of the following situations? a. Tables in the dining hall are numbered 1 through 12 for students who eat there. The principal calls out a number for the table that will go through the buffet line first. The other tables follow in order of the table numbers. One student is sure the principal calls certain tables more often. She keeps track of which numbers are called over a 21-day period. Mean O Median O Mode b. The offensive line of a football team is larger than in previous years. The program will list a statistic to show this fact. O Mean O Median O Mode C. A reporter is doing a story on the falling prices of homes in a large neighborhood. The reporter wants to demonstrate how the prices have fallen for the typical home, not just the most expensive houses. O Mean O Median O ModeQuestion 57 Find the range for this list of numbers 56 97 58 20 72 21 78 56 50 38 94 90 31 93 85 49 Range =Question 58 29 randomly selected students were asked the number of movies they watched the previous week. The results are as follows: # of Movies 0 1 2 3 4 Frequency 4 10 5 3 Round all your answers to 4 decimal places where possible. The mean is: The median is: The sample standard deviation is: The first quartile is: The third quartile is: What percent of the respondents watched at least 2 movies the previous week? 59% of all respondents watched fewer than how many movies the previous week? Hint: Using a Frequency Table Video on Using the T184 for Statistics Given a Frequency Table [ [+]. Question 59 A phenomenon is observed many, many times under identical conditions. The proportion of times a particular event A occurs is recorded. This proportion represents: O the distribution of the event A O the correlation of the event A O the variance of the event A O the probability of the event A. Question 60 Chance behavior O always has a predictable pattern both in the short run and in the long run. never has a predictable pattern whether it is analyzed in the short run or the long run. has a predictable pattern in the short run but is unpredictable in the long run is unpredictable in the short run but has a predictable pattern in the long run.Question 61 In parts (a) and (b), identify whether the events are Mutually Exclusive, Independent, or Neither (events cannot be both disjoint and independent). a) You and a randomly selected student from your class both earn A's in this course. O Independent O Mutually Exclusive ONeither b) You and your class partner both earn A's in this course. O Neither O Mutually Exclusive O Independent c) If two events can occur at the same time, they must be independent. O True O False. Question 62 A special deck of cards has 6 red cards, and 5 black cards. The red cards are numbered 1, 2, 3, 4, 5, and 6. The black cards are numbered 1, 2, 3, 4 and 5. The cards are well shuffled and you randomly draw one card. R = card drawn is red E = card drawn is even-numbered a. How many elements are there in the sample space? b. P(E) = Round your answer to two decimal places.Question 63 A bag of MOM's has 2 red, 6 green, 5 blue, and 8 yellow MAM's. What is the probability of randomly picking: (Round to 4 decimal places) aj a yellow? b) a blue or green? c) an orange?Question 64 Two dice are rolled. What is the probability of getting a sum equals &? Probability = (Round to 4 decimal places)Question 65 As shown above, a classic deck of cards is made up of 52 cards, 26 are black, 26 are red. Each color is split into two suits of 13 cards each (clubs and spades are black and hearts and diamonds are red). Each suit is split into 13 individual cards (Ace, 2-10, Jack, Queen, and King). If you select a card at random, what is the probability of getting: (Round to 4 decimal places where possible) a) A7 of Hearts? b) A Spade or Club? C) A number smaller than 10 (counting the ace as a 1)?Question 66 Giving a test to a group of students, the grades and gender are summarized below Grades vs. Gender A B C Male 14 18 20 Female 16 15 7 If one student was chosen at random, find the probability that the student got a B. Probability = (Round to 4 decimal places)Question 67 Giving a test to a group of students, the grades and gender are summarized below Grades vs. Gender A B C Male 14 10 16 Female 6 7 5 If one student was chosen at random, find the probability that the student was female. Probability = (Round to 4 decimal places)Question 68 The table summarizes results from pedestrian deaths that were caused by automobile accidents. Pedestrian Deaths Driver Pedestrian Intoxicated? Intoxicated? Yes No Yes 59 73 No 259 588 If one of the pedestrian deaths is randomly selected, find the probability that the pedestrian was intoxicated. (Round your answer to 4 decimal places.) Probability =Question 69 A ball is drawn randomly from a jar that contains 7 red balls, & white balls, and 5 yellow balls. Find the probability of the given event, and show your answers rounded to 4 decimal places when possible. a. Ared ball is drawn. P(red) = b. A white ball is drawn. P(white) = C. A yellow ball or red ball is drawn. P(yellow or red) =Question 70 Suppose you roll a special 35-sided die. What is the probability that one of the following numbers is rolled? 1 31 17 7 25 Probability = (Round to 4 decimal places)Question 71 Use the spinner below to find the probability of getting the following after 1 spin. 12 11 2 10 P (3 or 1) = 'Round to 4 decimal places). Question 72 The table summarizes results from pedestrian deaths that were caused by automobile accidents. Driver Pedestrian Intoxicated? Intoxicated? Yes No Yes 55 76 No 247 612 If one of the pedestrian deaths is randomly selected, find the probability that the driver was not intoxicated. (Please enter a decimal, and round your answer to 4 decimal places.) Probability =Question 73 A group of people were asked if statistics teachers know the true meaning of life. 345 responded "yes", and 449 responded "no". Find the probability that if a person is chosen at random, the person does NOT believes statistics teachers know the true meaning of life. Probability = (Round to 4 decimal places). Question 74 Giving a test to a group of students, the grades and gender are summarized below Grades and Gender A B C Total Male 17 4 7 28 Female 6 15 11 32 Total 23 19 18 60 If one student is chosen at random, find the probability that the student did NOT get a "C" Probability = (Round to 4 decimal places)Question 75 E and F are mutually exclusive events. P(E) = 0.15; P(F) = 0.71. Find P(E | F)