The scatterplot shows the age (in months) at which a child begins (Gesell Adaptive Score), for each of 21 children (2 sets of 2 children happen to have the same values). Macmillan Learning 120 110 90 28 100 Gesell Adaptive Score 90 80 70 70 60 60 50 5 10 15 20 25 30 35 40 45 Age at first word (months) One child clearly falls outside of the overall pattern of the scatterplot and, therefore, might be an outlier. The possible outlier is the child with age 26 months and score 71. Oage 17 months and score 121. age 7 months and score 113. age 42 months and score 57. 1. These data were originally collected by L. M. Linde of UCLA but were first published by M. R. Mickey, O. J. Dunn, and V. Clark, "Note on the use of stepwise regression in detecting outliers," Computers and biomedical Research, 1 (1967), pp. 105-111. The data have been used by several authors. These are taken from N. R. Draper and J. A. John, "Influential observations and outliers in regression," Technometires, 23 (1981), pp. 21 - 26.