Here are the number of hours that 9 students spend on the computer on a typical day:1 6 7 6 8 11 6 12 15Which of the following represents the mean number of hours spent on the computer? 6.0 7.0 8.0 9.0

A recent survey asked 90 students, How many hours do you spend on the computer in a typical day?Of the 90 respondents, 3 said 1 hour, 5 said 2 hours, 15 said 3 hours, 25 said 4 hours, 20 said 5 hours, 15 said 6 hours, 5 said 7 hours, 1 said 8 hours, and 1 said 9 hours.What is the average (mean) number of hours spent on the computer?0.544.445

A group of 6 students was asked, "How many hours did you watch television last week?" Here are their responses.7, 12, 13, 17, 16, 8Send data to calculatorFind the mean number of hours for these students.If necessary, round your answer to the nearest tenth.hours

Here are the number of hours that 9 students spend on the computer on a typical day:1 6 7 6 8 11 6 12 15The data from the above 9 students form what type of distribution? Ultimodal Unimodal Bimodal

A study was conducted to estimate μ, the mean number of weekly hours that U.S. adults use computers at home. Suppose a random sample of 81 U.S. adults gives a mean weekly computer usage time of 8.5 hours and that from prior studies, the population standard deviation is assumed to be σ = 3.6 hours.We are 95% confident that the mean number of weekly hours that U.S. adults use computers at home falls between which of the following intervals?Group of answer choices7.7 and 9.37.3 and 9.76.5 and 10.58.4 and 8.68.1 and 8.9

n a recent survey, 150 third-level students in Cork were asked to state how many hours they spent onthe internet in the first week of May. Results were as follows:Time spent on internet (hours) Number of students≥ 0 𝑎𝑛𝑑 < 5 30≥ 5 𝑎𝑛𝑑 < 10 55≥ 10 𝑎𝑛𝑑 < 15 31≥ 15 𝑎𝑛𝑑 < 20 29≥ 20 𝑎𝑛𝑑 < 25 5(a) Draw a histogram for this distribution.[6 marks](b) Calculate, correct to one decimal place, the mean time spent on the internet