28. Highway Repair The following data represent the num- her of potholes on 50 randomly selected 1-mile stretches of highway in the city of Chicago. 2 7 4 7 2 7
2 2 2 3 4 3
1 2 3 2 1 4
2 2 5 2 3 4
4 1 7 10 3 5
4 3 3 2 2
1 6 5 7 9
2 2 2 1 5
3 5 1 3 5
(a) Construct a frequency distribution of the data. (b) Construct a relative frequency distribution of the data. (c) What percentage of the 1-mile stretches of highway had seven or more potholes? (d) What percentage of the l-mile stretches of highway had two or fewer potholes? (e) Construct a frequency histogram of the data. (f) Construct a relative frequency histogram of the data. (g) Describe the shape of the distribution.

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

step-by-step explanation:

you divide the denominator by the numerator on both sides and if the quotients are equal then the fractions are equivalent

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.