Tristan created a distribution from the means of 30 samples as shown in the histogram. What number of samples reported a mean from 40 to 50 hundredths of a second? What interval of the histogram is a reasonable estimate of the mean reaction time?

there is no grid

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

four boxes of pizza

hope this

y= -2x+4, have a great day