OpenStax, Introductory Business Statistics 2e §2.4 Sigma Notation and Calculating the Arithmetic Mean · Exercise 12 · Statistics · Describing data
Sigma Notation and Calculating the Arithmetic Mean · Exercise 12
A class of 20 students has a mean grade of 80 on a test. Nineteen of the students has a mean grade between 79 and 82, inclusive.
(a) What is the lowest possible grade of the other student?
(b) What is the highest possible grade of the other student?
OpenStax, Introductory Business Statistics 2e · §2.4 Sigma Notation and Calculating the Arithmetic Mean · Exercise 12
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