A weights in kg of students in a class of 10 students are as follows 55, 67, 65, 45, 55, 58, 67, 70, 67, 69 Determine the mean weight E(X) and the standard deviation std(X). Round off your answers to 2 decimal places. E(X) = std(X) =

A weights in kg of students in a class of 10 students are as follows 55, 67, 65, 45, 55, 58, 67, 70, 67, 69 Determine the mean weight E(X) and the standard deviation std(X). Round off your answers to 2 decimal places. E(X) = std(X) =

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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Question

A weights in kg of students in a class of 10
students are as follows
55, 67, 65, 45, 55, 58, 67, 70, 67, 69
Determine the mean weight E(X) and the
standard deviation std(X). Round off your
answers to 2 decimal places.
E(X) =
std(X) =
%3D

Expert Solution

Step 1

We use formula of mean = sum of weight of all students/total students.and solve it.

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