Why is the median resistant, but the mean is not? choose the correct answer below. a. the median is resistant, while the mean is not, because when there are extreme values in the tail, the value of the median changes while the mean does not. b. the mean is not resistant because it is dependent upon the sample size, n. the larger n is, the smaller the mean becomes. however, the median is resistant because it is not dependent on the sample size, n. c. the mean is not resistant because when data are skewed, there are extreme values in the tail, which tend to pull the mean in the direction of the tail. the median is resistant because the median of a variable is the value that lies in the middle of the data when arranged in ascending order and does not depend on the extreme values of the data. d. the mean is not resistant because when data are skewed, there are extreme values in the tail, which do not pull the mean in that direction. however, the median is pulled in the direction of the extreme values, making it resistant.

47 - 90 = 43

43 - 180 = x

x = 137

the speed is   miles per hour > is false

step-by-step explanation:

we know that  

a relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

in a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

the graph shown in the figure represent a direct variation

the slope of the line represent the speed

for the point

substitute the values of x and y

the linear equation is equal to

statements

case a) it takes hours to go miles

the statement is true

because

substitute

for

find the value of y in the linear equation

> is correct

case b) the speed is   miles per hour

the statement is false

because the speed is

case c) the unit rate for the trip is

the statement is true

because the speed is equal to the slope of the linear equation

case d) it took minutes to go the first miles

the statement is true

because

substitute

for

find the value of y in the linear equation

> is correct

step-by-step explanation: