Has the marrying age of a man changed over the years? the united states bureau of the census takes a formal count of everyone in the u. s. every 10 years and has provided the following data that gives the median age of an american man at the time of his first marriage.. year1910192019301940195019601970198 019902000. median age25.124.624.324.322.822.823.224.7 26.126.8. . determine a ten-year period when the average rate of change is negative. a.1910 - 1920. b.1920 - 1930. c.1940 - 1950. d. all of the above

Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.