ZYRYACEGO
Answered

we want to test wether the general average of students in math is different from 80%​

Sagot :

SEMILLANOGRACEGO

Answer:

A student's average (arithmetic mean) test score on 4 tests is 78. What must be the student's score on a 5th test for the student's average score on the 5 tests to be 80?

(A) 80

(B) 82

(C) 84

(D) 86

(E) 88

E;88

Go Educations: Other Questions