Question

35,40,75,38,39,37,80,85,40,65,67,70,30,39,42,56
59,78,36
what will be the class width of that data and how to calculate it????

Answer 1

calss width is subjective; it depends on how many classes you want to put it in

Answer 2

take the range and divide it by how many classes you want

Answer 3

highest - lowest
------------- = class width (round up if a decimal)
#of classes

Answer 4

First we have to calculate the range

Answer 5

right, which is just high - low

Answer 6

or low - high and strip the negative

Answer 7

and then divide the anser by any of the Number which is divisible

Answer 8

sort {....} in wolfram helps :)

Answer 9

But if the answer of the range is any prime number such as 59 then.....

Answer 10

http://www.wolframalpha.com/input/?i=sort+%7B35%2C40%2C75%2C38%2C39%2C37%2C80%2C85%2C40%2C65%2C67%2C70%2C30%2C39%2C42%2C56%2C+59%2C78%2C36%7D

30 to 85

Answer 11

so we are at 55 range, whats our # of classes? tends to be between 5 and 20

Answer 12

What i can't understand it.....
Plz explain

Answer 13

i did explain. range/class# = class width

i found the range, whats our number of classes?

Answer 14

if we take 59 as 60. as it is little bit greater than 59 and than divide it .So it is Right.....

Answer 15

Actually i am talking about the prime number....
Because it is easy to dive the number such as 28 , 86 , 70 etc

Answer 16

im not familiar with any prime number method.

Answer 17

must be text specific to your course i spose

Answer 18

Yeh u r right

Answer 19

Suggest me a site for that...

Answer 20

http://www.emathematics.net/tablas.php?tipo=tabla2

is more along what im used to

Answer 21

Thanks..

Answer 22

hope it helps :)