Astudy was conducted to investigate the relationship between maternal smoking during pregnancy and the presence of congenital malformations in the child. among children who suffer from an abnormality other than down 's syndrome or an oral cleft, 32.8% have mothers who smoked during pregnancy [10] . this proportion is homogeneous for children with various types of defects. a) if you were to select repeated samples of size 25 from this population, what could you say about the distribution of the sample proportions? list 3 properties.

b) among the samples of size 25, what fraction has a sample proportion of .45 or higher?

c) what fraction has a sample proportion of .20 or lower?

d) what value of p cuts off the lower 10% of the distribution?

slope is 35 and 20 miles is the y-intercept.

step-by-step explanation:

answer: what statements

step-by-step explanation if you write the statements down then i could you.

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.

answer: the answer for that is 22/3