Wednesday
April 23, 2014

Homework Help: Math-Help Please

Posted by Denim on Monday, March 5, 2007 at 12:25am.

Can someone help me figure this out?

1. Find the first and third quartiles, Q1 and Q3 of the following numbers:
347,242,146,391,249,567,277,218,319
and

0.16,0.08,0.27,0.20,0.22,0.32,0.25,0.18,0.28,0.27

2. Which of the following numbers are integers?
75,9.82,-1/14,-498,0.71

The calculation of the quartiles is sometimes not quite clear (especially if the number of observations of a sample is not divisible by four). We therefore provide exact instructions how to calculate the quartiles. Assuming a sample of N observations the quartiles are defined as follows ("round" stands for the rounding to the nearest integer):

1. quartile: the value of the sorted series of observations having the position x = round(0.25*(N+1))
2. quartile (median): if N is even, Q2 is the mean of the two values at the positions N/2 and N/2+1; if N is odd, Q2 is the value at the position (N+1)/2
3. quartile: the value of the sorted series having the position x = round(0.75*(N+1))

Example:

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

math115 - Heres the problem find the first and third quartiles of the following ...
math115 - find the first and the third quartiles 347,242,146,391,249,567,277,218...
math - find the first and third quartiles,Q1and Q3,of the following set of ...
math - can someone check my answers subtract 7/9-(-13/19)=3/2 multiply (4)(-3/2...
Mat115 - 46. Find the five-number summary of the following set of numbers. 0.16...
math 115 - i am trying to find this answer there are 3 questions. 1. micheal ...
MATH!!! - Find the five-number summary of the following set of numbers. 0.16, 0....
Math - I am supposed to find the 1st and 3rd quartiles of the following.And they...
Math - Find the five-number summary of the following set of numbers. 0.16, 0.08...
math - Find the five-number summary of the following set of numbers. 0.16, 0.08...

Search
Members