Saturday

April 19, 2014

April 19, 2014

Posted by **carol** on Wednesday, May 12, 2010 at 12:27am.

The standard deviation of the ages in Room A is zero; the standard deviation of the ages in Room B is 12.25. So, when we say that for Room B the mean is 25 and the standard deviation is 12.25, we get a better picture of the age distribution in the room. Standard deviation is a measure of the "spread" in the data.

Also, how did I get 12.25? How was it calculated?

- statistic -
**Mahendra**, Wednesday, May 12, 2010 at 1:28amStandard Deviation = SQRT [ {sqr(10-25) + sqr (25-25) + sqr (40-25)}/3 ]

**Related Questions**

math - each table in a banquet room seats 8 people. The room can seat no more ...

math - one third of the people in a convention room are seated in three-fourths ...

statistics - If 20% of the people in a community use the emergency room at a ...

English - Could anyone suggest a food that could go in Room 101. Room 101 is a ...

Physics - In a "Rotor-ride" at a carnival, people are rotated in a cylindrically...

Physics - In a "Rotor-ride" at a carnival, people are rotated in a cylindrically...

Math - It is recommended that there be at least 7 square feet of work space for ...

physics - In a "Rotor-ride" at a carnival, people are rotated in a cylindrically...

Physics - In a "Rotor-ride" at a carnival, people are rotated in a cylindrically...

math - the average weight of men in a meeting room is 170 pounds, and average ...