In: Statistics and Probability
| 
 Number of baths (X)  | 
 Count  | 
|||
| 
 1.5  | 
 16  | 
|||
| 
 2.0  | 
 65  | 
|||
| 
 2.5  | 
 15  | 
|||
| 
 3.0  | 
 9  | 
|||
| 
 Total  | 
 105  | 
Solution:- Given Total = 105
Table :
| Number of baths (x) | Count | probability | 
| 1.5 | 16 | 16/105 = 0.152 | 
| 2.0 | 65 | 65/105 = 0.619 | 
| 2.5 | 15 | 15/105 = 0.143 | 
| 3.0 | 9 | 9/105 = 0.086 | 
| total | 105 | 1.00 | 
a. Mean = 2.0815

b. standard deviation = 0.3913
