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Risks of playing soccer (1.1) A study in Sweden looked at former elite soccer players
Chapter 1, Problem 77(choose chapter or problem)
Risks of playing soccer (1.1) A study in Sweden looked at former elite soccer players, people who had played soccer but not at the elite level, and people of the same age who did not play soccer. Here is a two way table that classifies these individuals by whether or not they had arthritis of the hip or knee by their mid-fifties:
(a) What percent of the people in this study were elite soccer players? What percent had arthritis?
(b) What percent of the elite soccer players had arthritis? What percent of those who had arthritis were elite soccer players?
Questions & Answers
QUESTION:
Risks of playing soccer (1.1) A study in Sweden looked at former elite soccer players, people who had played soccer but not at the elite level, and people of the same age who did not play soccer. Here is a two way table that classifies these individuals by whether or not they had arthritis of the hip or knee by their mid-fifties:
(a) What percent of the people in this study were elite soccer players? What percent had arthritis?
(b) What percent of the elite soccer players had arthritis? What percent of those who had arthritis were elite soccer players?
ANSWER:Step 1 of 2
(a)
Total no. of people in this study = 10 + 9 + 24 + 61 + 206 + 548 = 858
Total elite soccer players = 10 + 61 = 71
The percent of elite soccer players in this study =
The percent of elite soccer players in this study =
