Untitled

第一題

## 
##   The decimal point is 1 digit(s) to the right of the |
## 
##   4 | 9
##   5 | 139
##   6 | 13
##   7 | 9
##   8 | 49
##   9 | 1

## [1] 67.9

## [1] 62

## [1] 49

## [1] 16.25115

## [1] 264.1

##    0%   25%   50%   75%  100% 
## 49.00 54.50 62.00 82.75 91.00