Question

The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 248.2 and a standard deviation of 63.9. (All units are 1000 cells/uL.) Using the empirical rule, find each approximate percentage below. a. What is the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 56.5 and 439.9? b. What is the approximate percentage of women with platelet counts between 184.3 and 312.1? a. Approximately |% of women in this group have platelet counts within 3 standard deviations of the mean, or between 56.5 and 439.9. (Type an integer or a decimal. Do not round.) b. Approximately % of women in this group have platelet counts between 184.3 and 312.1. (Type an integer or a decimal. Do not round.)

Answer 1

16.66 IN NX 6 3.9) कि el 3 2 २3) 9 9.1 by ombinual ouule वि PL 84.3 X ( 2 . 618 Pi za 31 2 1 - 2482 ). - P( 2 < 184.3 -2 ५४ 2 63.9 63.9 = Plz ae) P[2-9) S6