60 days / 8 workers = 7.5
60 days - 12 days of work done = 48
48 x 7.5 = 360
360/ 12 workers = 30 days to finish rest of the house.
Answer:
0.9936 is the probability that the student will fail.
Step-by-step explanation:
We are given the following information:
We treat adult guessing correct answer as a success.
P(guess correct answer) = 0.2
Then the number of correct guesses follows a binomial distribution, where
where n is the total number of observations, x is the number of success, p is the probability of success.
Now, we are given n = 10
The student needs atleast 6 correct answer to pass the test. We have to calculate the probability that the student will fail.
We have to evaluate:
0.9936 is the probability that the student will fail.
Answer:
The customer pay to the plumber be $148 .
Step-by-step explanation:
As given
A plumber uses the expression 48 + 25h to determine the number of dollars to charge each customer.
If h = 4
Customer pay to the plumber = 48 + 25 × 4
= 48 + 100
= $148
Therefore the customer pay to the plumber be $148 .