it isn't d, because the interquartile range is from 27-57. and the interquartile range is basically half the data, it's pretty obvious.
it isn't b, because like i said earlier, the interquartile range is from 27-57. 57-27 is 30. the real range has to be longer
not a either. although it looks like it, 3/4 of the data is not greater than 27. but if c is wrong than this should be correct
the correct answer is c, because 13 is the point in which the plot starts
the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.
hope this : )