What is the relative frequency for $25 and the $35 class

Question

The frequency of $25 and $35 class 

Answer 1

There's information missing for this.  The frequency is how many times an element occurs.  The way you've written the question, it sounds like you have one category that's $25-35, i.e. a range.  But there's no frequency for it, nor for any other class.  So you can't do it based on just that information.

 

A relative frequency is the proportion of a frequency relative to the total.

 

Let's use an example:

A       5

B      10

C      12

D      10

E        3

 

The 5, 10, 12, 10 and 3 are the frequencies of the letters, which totals 40.

 

The relative frequency is the proportion of each to that 40 total.  To get that, you divide each one by 40:

A      5 / 40 = .125

B     10/ 40 =  .25

Etc.

 

The .125 is the relative frequency of A and .25 is the relative frequency of B, etc.  Those should total to 1.00.