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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 ?

Sagot :

  • We need mean

[tex]\\ \rm\hookrightarrow Mean=\dfrac{Sum}{n}[/tex]

[tex]\\ \rm\hookrightarrow \dfrac{59+94+57+87+75+90+82+57+65+77}{10}[/tex]

[tex]\\ \rm\hookrightarrow 74.3\%[/tex]

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