Sat scores were originally scales so that the scores for each section were approximately normally distributed with a mean of 500 and a standard deviation of 100. what would be the z-score corresponding to a student who gets a section score of 680?
a. 6.8
b. 1.8
c. 0.59
d. 1.16

Step-by-step explanation:

Z-score is calculated by the following formula:

Z = (X-mu)/sigma

where

X = data value

mu = mean

sigma = standard deviation

Given:

mu = 500

sigma = 100

X = 680

Z-score = (X-mu)/sigma = (680-500)/100 = 180/100 = 1.8

answer is : muchas/tipicas

have a nice day!

~recklesschicken

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4