Find the range and standard deviation of the set of data.
46, 44, 49, 39, 48, 40, 42

Step-by-step explanation:

The range of a data set is the difference between the least number and highest number in the data set.

The least number in the data set is .

The highest number in the data set is .

So,range is

Standard deviation measures how spread out the values in a data set are around the mean.

Let be the mean of the set.

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk