Find the standard deviation of the data, 12, 19, 9.

Harel asked Mar 24, 2023

196,449 views

32 votes

Harel asked Mar 24, 2023

by Harel

2.6k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

11 votes

Answer:

4.19

Explanation:

Find the mean:

$\text{Mean}=(12+19+9)/(3)=(40)/(3)$

Find the standard deviation:

$\text{Standard Deviation}=\sqrt{((12-(40)/(3))^2+(19-(40)/(3))^2+(9-(40)/(3))^2)/(3)}=\sqrt{(158)/(9)}\approx4.19$

Joe Pallas answered Mar 30, 2023

2.7k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers