Suppose a group of 9 sales price records has been stored as follows:

9, 25, 28, 30, 48, 72, 78, 195, 213

Partition them into three bins then smoothing them by the following methods:

a) Partition into equal-width then smoothing by bin means.

b) Partition into equal-depth then smoothing by bin boundaries.

****Please please I want an answer that is not repeated and unique****