Mrs. Bollo's second grade class of 30 students conducted a pet ownership surve Results of the survey indicate that 8 students own a cat, 15 students own a dog, and 5 students own both a cat and a dog. How many of the students surveyed own no pets?

Q: 4. Based on the survey conducted to 1200 respondents, I out of 3 Filipinos can't live without cell…

A:

Q: A survey of 240 families showed that 91 had a dog; 70 had a cat; 31 had a dog and a cat; 91had…

A: This question can be solved by creating a Venn diagram.

Q: From the analysis of students’ marks, Mr Adam decided to do one-to-one consultation with his…

A: If we consider that the students should bring the marks above the median, they are only exempted…

Q: Nolan surveyed 7 teachers from each academic department at school. Each department has an equal…

A: Given: 7 teachers from each academic department surveyed Each department has an equal number of…

Q: survey was given to 9090 high school students. They were asked if they preferred fiction or…

A: Given query is to find the percent of students in the survey,  prefer outdoor activities given they…

Q: Of 4105 students enrolled in Mineral County public schools (WV) in the academic year 2016-2017,…

A: We have to find type of statistics.

Q: Which types of car were driven by more than 623 respondents in the survey?

A: Here use proportion from given pie chart And calculate no of people drive that type of car

Q: How many ways can a researcher select 5 rats from 10 rats and assign each to a different test?

A: It is given a researcher select 5 rats from 10 rats and assign each to a different test.

Q: A survey of 800800 nurses yielded the following information: 430430 were health club members, 575575…

A: Given :  A survey of 800800 nurses yielded the following information: 430430 were health club…

Q: lowing is the correct decision?

A:

Q: Results of a survey of fifty students indicate that 30 like red jelly​ beans, 29 like green jelly​…

A: Given, Total students n(S)=50 Students who like red jelly beans n(R)=30 Students who like green…

Q: If only 15% of people asked to mail in a survey respond, this is an example of

A: Given that  Only 15% of people asked to mail in a survey respond.  We know that  Response bias :…

Q: Use the figure to the right, which shows the percentages of adults from severa power plants in their…

A: Null hypothesis: H0: pl=p2 Alternative hypothesis: Ha: pl≠p2

Q: A 20-minute consumer survey mailed to 500 adults aged 25-34 included a $5 Starbucks gift…

A: Given: Total adults = 500 A 20-minute consumer survey mailed to 500 adults aged 25-34 included a $5…

Q: SRS of 25 commuters to the Washington DC re selected, and each is asked how far they ommute to work…

A: Given data,n=25The sample mean x=39Sample sd     s=6Construct 90% CI?

Q: In a recent small survey of airline passengers, 27 said they had flown American in the last year, 23…

A: We will use  Addition theorem for  3 set

Q: Last year, 41% of business owners gave a holiday gift to their employees. A survey of business…

A: Given Information : Population proportion , p = 0.41. Sample proportion , p⏞ = 0.32. Number of…

Q: A taste-testing survey of Zing Farms showed that 2/3 of the people surveyed preferred the taste of…

A:

Q: A survey of 800 nurses yielded the following information: 430 were health club members, 555 were…

A: Given data, Total number of nurses=800 in which Health club member nurses =430 Smokers nurses =555…

Q: In a survey of 24 college students, it was found that 8 were taking an English class, 12 were taking…

A:

Q: A large university has 24,000 student a randomly-selected sample of 750 students were surveyed  and…

A: Given that there are 24,000 students out of which a randomly selected sample of 750 students. out of…

Q: on a multiple choice test with 20 questions, each question has 4 possible answers, one of which is…

A: We have to find mean  for students who guess at all  correct answers..

Q: Sarah chose to live on the honors floor of her dorm because she was told that the students on that…

A: Null Hypothesis: H0: The mean number of hours is greater than or equal to 11 hours. Alternative…

Q: Sam received scores of 84,86,83,90 and 87 on five tests. Hola had scores of 90,75,94,68 and 98 on…

A: Now we apply the formula of getting average = Sum of all scores / Total matches playedSo average…

Q: A survey was given among the members of the Silver Springs Country Club, asking which activities…

A: Given that: A survey was given among the members of the Silver Springs Country Club, asking which…

Q: A survey asks: Which online services have you used in the last month: - Twitter Facebook - Have used…

A:

Q: - In a survey of 500 students of a college, it liked watching hockey and 62% liked watc

A: Given, in a survey of 500 students of a college, it was found that 49% liked watching football, 53%…

Q: If Gena's score is 85, the class average is 82, and the SD is 4, what is Gena's Z-score?

A: If Gena's score is 85, the class average is 82, and the SD is 4, what is Gena's Z-score?

Q: Jill is pulling names out of a hat in order to select students to complete her survey.  There are 9…

A: Jill is pulling names out a hat to complete a survey. The number of names in the hat is equal to 9…

Q: A study was conducted to investigate a relationship between the colors of helmets worn by motorcycle…

A: When the given sample size is less than 30, then we use a small sample test in hypothesis testing.…

Q: Carter conducted an experiment to see how many people who passed by him at the park were wearing…

A: Given,          Carter conducted an experiment to see how many people who passed by him           at…

Q: A survey of 600 school employees yielded the following information: 325 were instructors, 442 were…

A: Given data, instructors= 325 full-time faculty=442 instructors were full-time faculty=255   No of…

Q: A survey was administered to 1000 Broward college students. 30% of the respondents indicated that…

A: Let x denotes number of students who prefer online classes over face to face classes and n denotes…

Q: In a study of children, a total of 1,548 children were examined. Of these, 1,017 had rickets. Of the…

A:

Q: In last year, five ranndomly selected students took a math aptitude test before they began their…

A: a) Excel Procedure: Enter X and Y in Excel>Data>Data Analysis> ‘Regression’>Select Y…

Q: In a set of 22 scores in statistics, the highest and the lowest scores were found to 89 and 25…

A: Measure of central tendency measures the central or average value of a dataset. Mean, median and…

Q: 600 students at Drew High School were surveyed. 269 of them were males. 455 of the students' wear…

A: Part a: Probability = Number of Males/Number of students =269/600 = 0.448

Q: Data collected by the Oil Price Information Service from more than 90,000 gasoline and convenience…

A: The mean is the average value of all the observation. It is calculated using the formula: The…

Q: Three hundred adults were asked whether or not they watch for calories and fat content when they buy…

A: Given: Yes means that an adult watches for calories and fat content and no means he/she does not…

Q: the poll, 44 were in favor o re against it. What percent ed were in favor of the hot

A: Given   Elizabeth's city took a telephone poll about a plan to build a new hotel downtown. Of the…

Q: Draw the scatter diagram and make a comment which student acts most different than others?

A: a) Steps for scatter plot in Excel: Enter the data for x and y in Excel sheet>Select the columns…

Q: Last year 46% of business owners gave a holiday gift to their employees.  A survey of business…

A: Consider that p is the true proportion of business owners plan to provide a holiday gift to their…

Q: A survey of 400 school empl yielded the following information: 295 were instructors, 215 were…

A: We have given that- Total number of school employee = 400 No. of instructors = 295 No. of full-time…

Q: A health psychologist want to investigate whether there is a relationship between sex and food…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

Q: how do you determine how many observations are in the first class of a stem and leaf chart

A: The objective is to infer the no. of observations (or frequencies) in the stem-and-left plot.

Q: Below are the scores that students get from a 50-item online assessment. Compute for the passing…

A: Question1 solved in step2 and Question2 solved in step3

Q: A serving for brand recognition is done and it is determined that 68% of consumers have heard of…

A: Solution: Let X be the number of consumers who recognize the dull computer company and n be the…

Q: In a survey of 3367 adults aged 57 through 85​ years, it was found that 84.2​% of them used at least…

A: A survey of 3,367 adults aged 57 through 85​ years. There is 84.2​% of them used at least one…

Q: On a multiple choice test with 9 questions, each question has four possible answers, one of which is…

A: It is given that there are 9 questions and each question having four possible, one of which is…