The mean and standard deviation of number who find their jobs stressful are 7.44 and 1.6814 respectively.
Given,
number of workers chosen , n=12
percentage of respondents =62%
from given data the calculation are done according to binomial distribution,
then,
probability of respondents ,
a)calculating mean,

b)calculating standard deviation,

Thus, the mean and standard deviation of number who find their jobs stressful are 7.44 and 1.6814 respectively.
To learn more about binomial distribution refer here
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Answer: add 22 with $18.55 divide 50%
Step-by-step explanation:
287.496 in^3 since you take 6.6 * 6.6 *6.6 that should give you your answer
He can drive 23 miles with 1 gallon of gas because 69/3= 23
it depends on how many people he wants in each column .