Mathematics, 11.02.2020 06:06 dmgcity
13.) The heights (in inches) of males in the United States are believed to be approximately normally
distributed with mean u. The mean height of a random sample of 25 adult American males is found to
be x = 69.72 inches and the standard deviation is 4.15 inches. What is the standard error of x?
a) 0.170
b) 0.690
c) 0.830
d) 1.836
e) 2.040
Answers: 1
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Mathematics, 21.06.2019 15:30
Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).
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13.) The heights (in inches) of males in the United States are believed to be approximately normally...
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