Question

Here are the test scores for 10 students in Mr. P's class.
59 , 94 , 57 , 87 , 75 , 90 , 82 , 57 , 65 , 77
What is the percentage of these test scores that are less than ?

Answer 1

• We need mean

$\\ \rm\hookrightarrow Mean=\dfrac{Sum}{n}$

$\\ \rm\hookrightarrow \dfrac{59+94+57+87+75+90+82+57+65+77}{10}$

$\\ \rm\hookrightarrow 74.3\%$