can you please help me solve part A and B on this question. I continue to get it
ID: 3370388 • Letter: C
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can you please help me solve part A and B on this question. I continue to get it wrong and cannot see what I'm doing wrong.
? Secure https://www.mathxl.com Student PlayerHomework.aspx?homeworkld-481049298&questionid-8;&flushedsfalselddsd989aas; centen ellu eyes hotoPa Math 11 Summer 2018 Online (1) Beatriz Montez 1 6/25/18 10:42 PM Homework: Section 3.2 Homework Save tisti score: 0 of 1 pt 8 of 11 (11 complete) HW Score: 74.24%, 8.17 of 11 pts 33.2.41 E Question Help have a bell-shaped distribution with a mean of 264.6 and a standard deviation of 63.9 (All units are 1000 cells/pt.) with a mean The blood platelet counts of a group of women Using the empirical rule, find each approximate percentage below nts te percentage of women with platelet counts within 1 standard deviation of the mean, or between 200.7 and 328 57 b. What is the approximate percentage of women vith platelet counts between 729 and 456 37 2.9 and 456 3 of women in this group have platelet counts within 1 standard deviation of the mean, or between 200.7 and 328.5 Type an integer or a decimal. Do not round) Contents SuccesS dia Library 2 Enter your answer in the answer box and then click Check Answer e Tools partExplanation / Answer
a) According to Emperical rule about 68% of all the data lies within one standard deviation from the mean.
200.7 is one standard deviation below the mean and 328.5 is one standard deviation above the mean. So 68% of women with platelet counts between 200.7 and 328.5
b) 264.6 - 3 * 63.9 = 72.9
264.6 + 3 * 63.9 = 456.3
72.9 is three standard deviation below the mean and 456.3 is three standard deviation above the mean.
According to emperical rule about 99.7% of the data lies within 3 standard deviation from the mean.
So 99.7% of women with platelet counts between 72.9 and 456.3.
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