Rose, OK. Sponsored Topics. Rose is a small unincorporated rural community in southeastern Mayes County, Oklahoma, United States, on Scenic U.S. Highway 412. The post office was established March 13, 1891, with David Ragsdale as the postmaster. The ZIP Code is 74364. The community was said to have been named for Rowe's Prairie, which is nearby.
The formula below is used to compute percentiles of a normal distribution. where Î¼ is the mean and Ï is the standard deviation of the variable X, and Z is the value from the standard normal distribution for the desired percentile. Example:1  The mean BMI for men aged 60 is 29 with a standard deviation of 6.2  The mean BMI for women aged 60 the mean is 28 with a standard deviation of 7.here Î¼ is the mean and Ï is the standard deviation of the variable X, and Z is the value from the standard normal distribution for the desired percentile. Example: 1  The mean BMI for men aged 60 is 29 with a standard deviation of 6. 2  The mean BMI for women aged 60 the mean is 28 with a standard deviation of 7.
The most basic relative score is the percentile rank, which specifies the percentage of people in the normative group who score lower on the measure than yourself. So if you scored at the 25th percentile, it means that 25% of the people score lower than you and 75% score higher than you. Percentile ranks can range from 0 (for the person with the lowest score) to 100 (for the person with the highest score). Most often percentile ranks are computed from a frequency distribution.