Will give !

a researcher wanted to compare the final test scores of students who used two different types of study materials. the researcher randomly selected two samples of 20 students using each type of material and determined the final test score of each student. the table shows the mean final score and the mean absolute deviation (mad) for each sample.

the researcher can/cannot conclude that material 1 leads to higher final test scores because the distributions of the scores in the two samples are identical/somewhat similar/ similar/ different.

The researcher CAN

The two samples are DIFFERENT

The researcher

can

conclude that Material 1 leads to higher final test scores because the distributions of the scores in the two samples are

different

.

Step-by-step explanation:

54.864 meters

step-by-step explanation:

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.