The width should be 100.8 inches since you multiply 42 × 2.4. Hope it helps.
820
bc it is not 825 or higher it stays the same
Answer: 0.1340
Step-by-step explanation:
The binomial distribution formula is given by :-
, where P(x) is the probability of x successes out of n trials, p is the probability of success on a particular trial.
Given : The number of employees over 50 years of age =7
The probability of employees over 50 years of age = 
Number of dismissed employees : n= 9
Now, the required probability will be :

Thus, the probability that exactly 1 employee was over 50 = 0.1340
The 99.87th percentile, or the area to the left of the 3 standard deviation mark it 99.87% better than everyone/everything else.