In the united states, the mean age of men when they marry for the first time follows the normal distribution with a mean of 29 years. the standard deviation of the distribution is 2.5 years. for a random sample of 60 men, what is the likelihood that the age when they were first married is less than 29.3. years?

Step-by-step explanation:

Let X represent the age of men when they marry for the first time  in the United States.

Given x bar follows normal with mean = 29 years and sigma = 2.5 years

Sample size =n= 60 men

Std error of sample =

The  likelihood that the age when they were first married is less than 29.3. years

=0.8238

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.