Answer:
120%
Step-by-step explanation:
100% = 1.6, 0.32=20%
Answer: Mean = 52.8 mins
Step-by-step explanation:
We have lapses of 30 minutes, so we can write the average for each, this means that:
0 < t < 30 can be averaged to the middle of the range: 15 min.
Doing this, we have that:
7 students 15 min
27 students 45 min
12 students 75 min
4 students 105 min.
Now we can calculate the mean:
mean = (x1*n1 + x2*n2 + ...)/N
where x1 is the amount of time 1, and n1 is the number of students associated to that time and so on. N is the total number of students
Mean = (7*15min + 27*45min + 12*75min + 4*105min)/(7 + 27 + 12 + 4)
Mean = 52.8 mins
Answer:
C??...
Step-by-step explanation:
Answer:
Binomial Problem with n = 20 and p(hire woman) = 1/2
P(at most two) = binomial(20,1/2,2) = 0.0001811
Step-by-step explanation:
The probability of successes in trials where is the probability of success on any given trial is given by:
Answer:
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Step-by-step explanation:
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