Carrie and vicki are both enthusiastic players of a certain computer game. over the past year, carrie’s mean score when playing the game is 12,400 with a standard deviation of 1500. during the same period, vicki’s mean score is 14,200, with a standard deviation of 2000. they devise a fair contest: each one will play the game once, and they will compare z-scores. carrie gets a score of 14,000, and vicki gets a score of 16,000. calculate their z-scores and determine who won the contest.

Carrie won

Step-by-step explanation:

Carrie's mean 12,400 and standard deviation 1,500.

Vicki's mean 14,200 and standard deviation 2,000.

Z score is the distant a value is from the mean in terms of standard deviations.

x is the value

μ is the mean

σ is the standard deviation

Carrie's z-score:

Vicki's z-score:

Comparing z-score Carrie won the contest

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

answer: i literally just answered this question but they want me to do it again

step-by-step explanation: