Question

apter 1. Consider the following data on distances traveled by 100 people to visit the local park. 1-8 30 25 20 15 10 9-16 17-24 25-32 33-40 Expand and construct the table adding columns for relative frequency and cumulative relative frequency. Then plot Histogram, Frequency Polygon and Ogive Curve. 2. Math test anxiety can be found throughout the general population. A study of 200 seniors at a local high school was conducted. The following table was produced from the data. Complete the missing parts. Relative Frequency Cumulative Relative Frequeney Score Range Very anxious Anxious Mildly anxious Generally relaxed Very relaxed Frequency 0.20 0.35 54 0.30 3. The following frequency table summarizes the distances in miles of 100 patients from a regional hospital Distance Freueney 0-2 2-4 4-6 6-8 8-10 Calculate the sample variance and standard deviation for this data (since it is a case of grouped data- use group or class midpoints in the formula in place of X values, and first calculate the sample mean). 35 30 15 10 10

Answer 1

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