Listed below are the durations (in hours) of a simple random sample of all flights of a space shuttle. find the (a) mean, (b) median, (c) mode, and (d) midrange for the given sample data. is there a duration time that is very unusual? how might that duration time be explained? 68 92 231 189 169 267 196 381 257 231 385 330 219 239 0 (a) the mean is hours. (round to one decimal place as needed.) (b) the median is hours. (round to one decimal place as needed.) is there a duration time that is very unusual? how might that duration time be explained? (a) no, the flights have usual duration times ranging from 0 to over 375 hours. (b) yes, the time of 0 hours is very unusual. it could represent a flight that was aborted. (c) no, there is no flight with an unusual duration time. (d) yes, the time of more than 375 hours is very unusual. it could represent a very long flight.

Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.