Question

greta collects the number of miles run each week from random sample of female marathon runners. her data are shown below. she made the qualitative statement, "25% of female marathoners run 13 or more miles a week." is her statement reasonable. explain. data: 13, 14, 18, 13, 12, 17, 15, 12, 13, 19, 11, 14, 14, 18, 22, 12

Answer 1

Her statement is not reasonable because it is not true that 25% of female marathoners run 13 or more miles a week, it is true that 25% run less than 13 miles a week (out of the data). The rest of the data would be 75%, making the statement, "75% of female marathoners run 13 or more miles a week" true. The way she recorded the data does not interfere with the statement being  reasonable since it is unbiased.