Median is middle number of a data set. If a data set has an odd number of numbers then the median is the middle number when ordered form least to greatest but if its an even number you have to find the mean for the middle 2 numbers when ordered for least to greatest.
A.
1.2, 2.4, 3.2, 3.2, 3.6, 4.0, 4.1, 4.7
Even numbers = 8 3.2 + 3.6 = 6.8 6.8 ÷ 2 = Median = 3.4 So this shows that A isn't the answer because the median of A is 3.4, not 3.2.
B.
1.6, 2.8, 2.9, 3.1, 3.3, 3.6, 4.2, 4.5
Even numbers = 8 3.1 + 3.3 = 6.4 6.4 ÷ 2 = 3.2 Median = 3.2 <span>So this shows that B is the answer because the median of B is 3.2.
C.
1.8, 2.0, 2.0, 2.2, 3.2, 4.7, 4.8, 4.9 </span> Even numbers = 8 2.2 + 3.2 = 5.4 5.4 ÷ 2 = 2.7 Median = 2.7 <span>So this shows that C isn't the answer because the median of C is 2.7, not 3.2. </span> D.
its equivalent because 75% equals to 75 over one hundred = 75/100 so when you divide 75 by 3 you get 25 but then you have to divide 25 by 10 you get 2.5