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Question Thr x D Microsoft we MMYMassasolt x Welcome to M x Y D Microsoft Wo x Written Assignment2.pdf Patients who undergo chronic hemodialysis often experience severe anxiety. The data in the frequency table gives score results from a psychiatric questionnaire for patients that viewed relaxation videotapes, where higher scores correspond to higher anxiety. Anxiety Frequency 14-20 21-27 28-34 35-41 42-48 49-55 We'll construct a relative frequency table. I'll even start you off! We want to add up all the frequencies together so that we know what our total is: 4+6+6+5+2+2 25 That means that 25 patients filled out questionnaires. To calculate a relative frequency, we're essentially finding what "percent of the total each category accounts for I use quotation marks around "percent because we're really calculating a decimal. Out of the 25 total responses, 4 of them marked an anxiety level between 14 and 20. So for the category of between 14 and 20," this would be the relative frequency 4/25 0.16 So the first row of the relative frequency table would be 0.16. 1) What should the other relative frequencies be? Give them to me in order from row 2 to row 6

Explanation / Answer

2. Anxiety level above 48 = 8%(49 to 55)

3. Anxiety level of 34 or less = 0.16+0.24+0.24 = 64%

4. Frequency for 35 to 41 is 5 but in histogram it is 2.

5. Relative frequency for 42-48 and 49-55 is the same(0.08) but in the histogram they are different

Anxiety Frequency Relative frequency 14-20 4 0.16 21-27 6 0.24 28-34 6 0.24 35-41 5 0.20 42-48 2 0.08 49-55 2 0.08 Sum 25 1

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