Answer:
Step-by-step explanation:
mean m = 94
standard deviation = 10
This problem relates to normal distribution .
For 95.4 % possibility the deviation must not exceed 2 x standard deviation
or no of jobs should fall within range of
94 + or - 2 x 10
94 + 20 = 104
94 - 2 x 10 = 74
no of job should fall between
104 and 74