What is the mean of the data set? {21, 23, 25, 25, 26, 28, 28, 28, 31, 33}

26.8

27

27.8

28​

Step-by-step explanation:

In mathematics, mean average means to take the sum of all the numbers and divide the sum by the number of elements in the set.In mathematics, mean average means to take the sum of all the numbers and divide the sum by the number of elements in the set.Add up the numbers.In mathematics, mean average means to take the sum of all the numbers and divide the sum by the number of elements in the set.Add up the numbers.21 +23+25+25+26+28+28+ 28 + 31In mathematics, mean average means to take the sum of all the numbers and divide the sum by the number of elements in the set.Add up the numbers.21 +23+25+25+26+28+28+ 28 + 31+ 33 = 268In mathematics, mean average means to take the sum of all the numbers and divide the sum by the number of elements in the set.Add up the numbers.21 +23+25+25+26+28+28+ 28 + 31+ 33 = 268Divide by the number of elements in the set. Which is 10.In mathematics, mean average means to take the sum of all the numbers and divide the sum by the number of elements in the set.Add up the numbers.21 +23+25+25+26+28+28+ 28 + 31+ 33 = 268Divide by the number of elements in the set. Which is 10.268/10 = 26.8In mathematics, mean average means to take the sum of all the numbers and divide the sum by the number of elements in the set.Add up the numbers.21 +23+25+25+26+28+28+ 28 + 31+ 33 = 268Divide by the number of elements in the set. Which is 10.268/10 = 26.8So, the answer to this question is 26.8

40 & 50 in the right corner are the complementary angles as when placed in a sum (added together) they make 90°

Aso sorry if i’m wrong