Question

for Question 10 make frequency distribution only.

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9. The numbers below are the number of aggres sive acts for each preschool child over a week in a class of 25 students. First, construct a fre- quency distribution in the manner of Table 2-9, including the real limits, size, and midpoints of the class intervals. For such a small distribu- tion only five or so intervals are necessary. Sec- ond, compose a relative frequency, cumulative frequency, and cumulative relative frequency distribution for these data in the manner of Table 2-5. Third, construct polygons and his- tograms for the frequency and relative fre- quency distributions and a polygon for the two cumulative distributions. 36 28 47 4044 47 37 43 32 40 42 38 48 35 37 37 26 34 38 27 41 10. The procedures for constructing a frequency distribution were described for data composed of whole numbers. Obviously, many of the measurements made by scientists are in deci- mal form. The guidelines for constructing fre- quency distributions listed in Table 2-8 also apply to decimal data. Perform the tasks re- quired in Exercise 9 with the numbers below Again, fewer than 10 intervals are appropriate. 2.8 2.5 2.02.1 8 1.9 3.1 2.2 9 1.3 2.4 1.6 23 151.1 20 3.0 3.8 2.2 4.4 15 1.2 2.5 13 30 s 31 17 23 27

Answer 1