N2004, the general social survey (which uses a method similar to simple random sampling) asked, "do you consider yourself athletic? " for this question, 255 people said that that they did out of 2373 randomly selected people. what is the standard error of the confidence interval?

Answer-

The standard error of the confidence interval is 0.63%

Solution-

Given,

n = 2373 (sample size)

x = 255 (number of people who bought)

The mean of the sample M will be,

Then the standard error SE will be,

Therefore, the standard error of the confidence interval is 0.63%

a) 7x=7

step-by-step explanation:

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.