PLEASE HELP
Find the mean, median and mode(s) for each data set. Write a sentence that compares at least one
measure of center between the pairs of data sets.

Mark's test scores: 82, 83, 74, 94, 76, 71,94

Irina's test scores: 95, 83, 79,95, 82, 79, 89

mode = the most

mean =average of the numbers: a calculated "central" value of a set of numbers. ... add up all the numbers, • then divide by how many numbers there are.

median=The middle number; found by ordering all data points and picking out the one in the middle (or if there are two middle numbers, taking the mean of those two numbers).

Now we arrange all Mark's test scores first (arrange in a sequence), so it will become :

71, 74, 76, 82, 83, 94, 94

mode = 94

mean = (71 +74+76+82+83+94+94) over 7

= 574 over 7

= 82

median = 82

Now we arrange all Irina's test scores first (arrange in a sequence too) , so it will become :

79, 79, 82, 83, 89, 95, 95

mode (there are 2 modes in Irina test) which is 79 and 95 because both of them appears twice.

mean = (79+79+82+83+89+95+95) over 7

= 602 over 7

= 86

median = 83

41*67/2=1373.5

step-by-step explanation:

i just used a calculator

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.