The distance (in km ) of 40 engineers from their residence to their place of work were found as follows:51715​31615​1027​2076​25912​117​138​73​125​3112​1915​1018​123​1712​1814​112​39​26​​ Total numbers of engineers =40(i) Number of engineers living less than 7 km from their place of work =9 the probability that an engineer lives less than 7 km from her place of work =9 / 40(ii) Number of engineers living more than or equal to 7 km from their place of work =40−9=31 therefore probability that an engineer lives more than or equal to 7 km from her place of work =31 / 40(iii) Number of engineers living within 1/2 km from their place of work =0therefore the probability that an engineer lives within 1/2 km from her place of work =0 / 40=0