Mathematics, 06.05.2020 02:15 joehelmy
Human measurements provide a rich area of application for statistical methods. In a longitudinal study the development of elementary school children explored the relationship between IQ and private speech. Private speech is considered to be when children talk to themselves. It was thought that private speech would be related to IQ, because IQ is supposed to measure mental maturity, and it was known that private speech decreases as students progress through the primary grades. The study included 34 students whose first-grade IQ scores are given below. Use the R code to calculate the sample summary statistics, histogram and boxplot.
IQ. data = c(78, 91, 99, 102, 103, 103, 106, 107, 107, 107, 108, 108, 109, 109, 110, 110, 112, 112, 112, 113, 114, 114, 118, 118, 125, 125, 126, 127, 127, 132, 136, 140, 140, 151)
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