RESEARCH METHODOLOGY

STATISTICAL TECHNIQUES AND TOOLS

MEASURE OF STANDARD DEVIATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The Marathon Walk for World Peace has a 25-mile route. A random sample of participants walked the distances shown. Find the variance and standard deviation.Distance (miles) Number of Walkers 1-5 14 6-10 9 11-15 1116-20 1021-25 6
A
14287.5, 119.5 miles
B
48.21, 2324.2 miles
C
48.21, 6.9 miles
D
181.44, 13.5 miles
Explanation: 
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