Charles claims he can act as a random number generator. Samantha has doubts. She tells Charles to write down 50 random digits, suspecting that he won't write down 50 random digits, suspecting that Charles produces fewer zeros than the expected 10%? Samantha simulated 100 trails of choosing 50 random digits, assuming that zero has a 1/10 chance of occurring each time. The dotplot shows the number of zeros in each trial. A) Explain how the graph illustrates chance variation. B) Based on the results of the simulation, is there convincing evidence that Charles doesn't choose zero often enough when he's trying to generate random number? Explain.

dont think so

step-by-step explanation:

answer: $1794

step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q