Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Eye Color
Hair Color Blue Gray Green Brown Marginal Total
Blond 42 5 21 10 78
Red 12 22 19 12 65
Brown 22 5 12 34 73
Black 9 3 11 64 87
Marginal Total 85 35 63 120 303

As part of a class project, a university student surveyed students in the cafeteria to look for a relationship between the students’ eye color and hair color. The table contains the survey results.

The percentage of the sample population with brown eyes and black hair is larger than the percentage of the sample population with blue eyes and black hair by
(answer)
percentage points. (Round off your answer to the nearest whole number.)

18%

Step-by-step explanation:

Divide 64/303.

Divide 9/303.

Subtract the answers and you'll get 18%.

differnt varibles efect the range

step-by-step explanation:

something that characterises a right triangle is the fact that we may use pythagoras' theorem to find any one of its sides given that we have the length of the other two sides. here, we have the length of the hypotenuse, √(87) yd, and one other side, √(23) yd, thus we can easily find the length of the remaining side using pythagoras' theorem as defined below:

c^2 = a^2 + b^2, where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.

thus, given that c = √(87) and a = √(23), we may substitute these into the formula we defined above to get:

c^2 = a^2 + b^2

(√87)^2 = (√23)^2 + b^2 (substitute c = √87 and a = √23 into the equation)

87 = 23 + b^2 (evaluate (√87)^2 = 87 and (√23)^2 = 23 - remember that the square root of a number, squared will equal that very same number)

64 = b^2 (subtract 23 from both sides)

√64 = b (take the square root of both sides)

8 = b (evaluate √64 = 8)

therefor, the length of the unknown leg in the right triangle is 8 yd (first answer).