The effect of the time of day a psychology class is taught on test scores is
being studied in an experiment. student ability has been identified as an
extraneous factor that could also affect test scores. how can student ability
best be addressed to minimize its effect in the experiment?

don't know sorry bru

step-by-step explanation:

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

answer

a) the midrange of the data set shown is 85.5

step by step explanation

let's find the midrange.

the midrange is nothing but add the greatest value and the least value, then divide it by 2.

here the greatest value = 99

the least value = 72

midrange = (99 + 72)/2

= 171/2

midrange = 85.5

you.