Answer:
Molly does 15% of her homework in study hall. If she spent 45 minutes on homework in stuffy hall, how much time in minutes dose
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Answer:
The advertisement should use 16 minutes.
Step-by-step explanation:
Exponential distribution:
The exponential probability distribution, with mean m, is described by the following equation:
In which is the decay parameter.
The probability that x is lower or equal to a is given by:
Which has the following solution:
The probability of finding a value higher than x is:
The manager of a fast-food restaurant determines that the average time that her customers wait for service is 3.5 minutes.
This means that
What number of minutes should the advertisement use?
The values of x for which:
So
Rounding to the nearest number, the advertisement should use 16 minutes.