4. About 10% of people in the United States do not wear a seat belt. Suppose we take a random sample of 180 U. S. residents, and let X= the number of people who do not wear their seat belt.

(A) calculate the mean and standard deviation of the sampling distribution of X

(B) Justify that the distribution of X is approximately normal

(C)Use the normal distribution to calculate the probability that 26 or more individuals in the sample do not wear their seat belt

choose (5, 1.5) and (-1.5,-3.5)

step-by-step explanation:

5 - 1.5 =3.5

-1.5 - (-3.5) = 2

3.5 + 2 =5.5

hope this !

area of rectangle a is 2 times that of rectangle b that means 2x+x =   36cm^2

3x = 36cm ^2

x = 36/3

x= 12cm^2

and 2x = 24cm^2

now side of square = are divided by sides = 36/4 = 6cm

that means length of rectangle a and b is 6cm too

now for rectangle a,

l*b = area

= 6*y=24

y=24/6 = 4

therefore dimensions of rectangle a are- length = 6cm, breadth = 4cm

and for rectangle b, length = 6cm and breadth = 6-4 = 2cm.

hope this .