Identify the level of measurement of the data, and explain what is wrong with the given calculation. In a set of data, alert levels are represented as 10 for low, 20 for medium, and 30 for high. The average (mean) of the 719 alert levels is 25.4. The data are at the level of measurement.
A. Nominal
B. Ordinal
C. Ratio
D. Interval

C. Ordinal

The data should not used to calculate the average.

Step-by-step explanation: Ordinal level of measurement is the second level of measurement that is concerned with ordering, ranking and classification of data,it does not show the rate or degree of variation between a set of data.

Stanley Smith Stevens is the one who classified data into four levels of measurement,he is a psychologist and a statistician, the data collected should not be used to calculate the AVERAGE of a set of numbers.

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right