Daphne's teacher told her that the standardized score (z-score) for her history exam, as compared to the exam scores of other students in the course, is 2.50. Which of the following is the best interpretation of this standardized score? Question 11 options:

1) Daphne's test score is 250.

2) Daphne's test score is 2.50 times the average test score of students in the course.

3) Daphne's test score is 2.50 standard deviations above the average test score of students in the course.

4) Daphne's test score is 2.50 above the average test score of students in the course.

5) None of the above gives the correct interpretation.

final answer is : )

x+y = 29, 5x + 2y = 100

step-by-step explanation:

i'm guessing it was a multiple first option was the correct answer

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

ask for details followreport by buttfacelily 2 minutes ago

answers

rauschg

rauschg · hand

know the answer? add it here!

step-by-step explanation: