The effect of the time of day a psychology class is taught on test scores is being studied in an experiment. The difficulty of test questions has been
identified as an extraneous factor that could also affect test scores. How ca
the difficulty of test questions best be addressed to minimize its effect in th
experiment?
O A. Blocking into groups based on the teacher of the class
O B. Replication of the experiment at different times of the year
O C. Randomization of students in morning and afternoon classes
D. Direct control by requiring every class to take the same test

direct control by requiring...

Step-by-step explanation:

the other guy was wrong

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

we have the parent function given by,

1. the function is translated 5 units to the left.

so, we get,   becomes

2. the function is translated 5 units to the right.

so, we get,   becomes

3. the function is translated 5 units upwards.

so, we get,   becomes

4. the function is translated 5 units downwards.

so, we get,   becomes

5. the function is reflected across x-axis.

so, we get,   becomes

6. the function is reflected across y-axis.

so, we get,   becomes .

step-by-step explanation:

mark brainliest.