The mean height of women in a country (ages 20minus29) is 64.2 inches. a random sample of 50 women in this age group is selected. what is the probability that the mean height for the sample is greater than 65 inches? assume sigmaequals2.58. round to four decimal places.

0.0142

Step-by-step explanation:

Given : The mean height of women in a country (ages 20 - 29) is 64.2 inches.

i.e.

Also,

Sample size : n= 50

Let x denotes the height of women.

Then, the probability that the mean height for the sample is greater than 65 inches :-

Hence, the the probability that the mean height for the sample is greater than 65 inches = 0.0142

hope this !

step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!