What percent of undergraduate enrollment in coed colleges and universities in the United States is male? A random sample of 50 such institutions give the following data. Percent Males Enrolled in Coed Universities and Colleges 37 35 41 36 42 39 44 53 49 42 35 37 43 47 48 24 41 45 51 28 46 45 48 41 71 42 52 52 48 44 50 53 53 56 62 46 26 41 43 42 37 36 33 53 36 37 43 47 48 53 For this problem, use five classes.Find the class width.  [BLANK-1]

What is the average miles per gallon (mpg) for all new hybrid small cars? Using Consumer Reports, a random sample of such vehicles gave an average of 35.7 mpg. Is the variable quantitative or qualitative?

A logistics company is analyzing the relationship between the weekly fuel cost (in dollars) and the total number of delivery hours across their fleet of vehicles. They want to use the data to predict fuel cost using delivery hours. A data analyst examined the past records and summarized the findings below. (Assume the scatterplot shows a linear trend.) Variable Mean Std Dev Delivery Hours 12 3 Fuel Cost 890 180 Pearson’s Correlation: 0.60                                                                    QUESTION: If the company logs 7 hours of delivery time in a week, what is the predicted fuel cost based on the linear regression line?

Which technique for gathering data (sampling, experiment, simulation, or census) do you think was used in the following studies?The effects of wind shear on airplanes during both landing and takeoff were studied by using complex computer programs that mimic actual flight.

Categorize these measurements associated with fishing according to level: nominal, ordinal, interval, or ratio.Cost of rod and reel

Consider the following ordered data. 12    15    15    16     17    17    18     19    20 Find the low, Q1, median, Q3, and high. low [BLANK-1] Q1 [BLANK-2] median [BLANK-3] Q3  [BLANK-4] high [BLANK-5]

Please number you work. In order to receive credit, you must work must support the answer you select for the problem.   Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for Vanguard Total Stock Index (all stocks). Let y be a random variable representing annual return for Vanguard Balanced Index (60% stock and 40% bond). For the past several years, we have the following data.  x: 37 0 38 -23 15 y: 28 -3 24 19 28 Use the results of question 1 to compute the sample mean, variance, and standard deviation for x and for y. (Round your answers to one decimal place.) x: y: sample mean [BLANK-1] [BLANK-2] s 2 [BLANK-3] [BLANK-4] s [BLANK-5] [BLANK-6]

What percent of undergraduate enrollment in coed colleges and universities in the United States is male? A random sample of 50 such institutions give the following data. Percent Males Enrolled in Coed Universities and Colleges    37 35 41 36 42 39 44 53    49 42 35 37 43 47 48 24    41 45 51 28 46 45 48 41    71 42 52 52 48 44 50 53    53 56 62 46 26 41 43 42    37 36 33 53 36 37 43 47    48 53     For this problem, use five classes. Make a frequency table showing class limits, class boundaries, midpoints, frequencies, relative frequencies, and cumulative frequencies. (Round your relative frequencies to two decimal places.) **There are two submission boxes in each box of the class limits and class boundries (one for the lower limit and one for the higher limit). ** **Enter in a zero, if you have a decimal answer, ie, enter 0.57. Class Limits Class Boundaries Midpoint Frequency Relative Frequency Cumulative Frequency [BLANK-1] – [BLANK-2] [BLANK-3] – [BLANK-4] [BLANK-5] [BLANK-6] [BLANK-7] [BLANK-8] [BLANK-9] – [BLANK-10] [BLANK-11] – [BLANK-12] [BLANK-13] [BLANK-14] [BLANK-15] [BLANK-16] [BLANK-17] – [BLANK-18] [BLANK-19] – [BLANK-20] [BLANK-21] [BLANK-22] [BLANK-23] [BLANK-24] [BLANK-25] – [BLANK-26] [BLANK-27] – [BLANK-28] [BLANK-29] [BLANK-30] [BLANK-31] [BLANK-32] [BLANK-33]- [BLANK-34] [BLANK-35] – [BLANK-36] [BLANK-37] [BLANK-38] [BLANK-39] [BLANK-40]

A software developer has applied for 2 tech companies: X and Y. She has a 50% chance of receiving a job offer from Company X. She has a 65% chance of receiving a job offer from Company Y. If she receives a job offer from Company Y, she has 70% chance of receiving an offer from Company X as well. What is the probability that she won’t receive offer from neither company?  

A music streaming company collects data on a sample of 240 users based on their subscription type and preferred genre. What do the following numbers represent. (They sum to 1) 70/130 60/130   Pop Rock Total Free Account 50 70 120 Premium Account 60 60 120 Total 110 130 240