Answer:
0.3216 = 32.16% probability that, in any seven-day week, the computer will crash less than 3 times
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given time interval
Mean of 0.5
7-day week, so 
What is the probability that, in any seven-day week, the computer will crash less than 3 times?

In which





0.3216 = 32.16% probability that, in any seven-day week, the computer will crash less than 3 times
The cost of company 1: 10x+50
The cost of company 2: 8x+60
The cost will be the same at:

The answer is 5 hours
Answer:
Step-by-step explanation:
Answer:

Step-by-step explanation:

<h3>Hope it is helpful....</h3>
Answer:
£65.40
Step-by-step explanation: