Answer:
option (c) 91
Step-by-step explanation:
Data provided in the question:
The minimum usual value of w binomial distribution = 89.3
The maximum usual value = 102.8
Now,
Using the range rule of thumb
Range = 4 × ( standard deviation)
All values between 89.3 and 102.8 will be considered as the usual for the distribution
From the given options in the question
Only the value 91 lies in the given range
Hence,
The answer is option (c) 91