Friday

August 29, 2014

August 29, 2014

Posted by **Matt** on Saturday, February 10, 2007 at 3:22pm.

Using the Poisson distribution with a mean of m is this:

P(x) = e^(-m) m^x / x!

To find the mean, take n * p.

n * p = 7 * 0.90 = 6.3

Find P(4), P(5), P(6), and P(7). Add together for your total probability.

I'll get you started.

P(4) = e^(-6.3) 6.3^4 / 4! = 0.1205

Can you take it from here to finish?

**Related Questions**

statistics - A firm has 30% of its service calls made by a contractor, and 15% ...

statistics - The company policy for customer service representatives gives time ...

maths - (a) A random survey of 100 mobile telephone customers indicated that 96 ...

chemistry - When 47.5J of heat are added to 13.2 g of liquid, its temperature ...

customer service - Of the characteristics common to good listeners, which do you...

pre calculus - 1.)A utility company has the following rate schedule for natural ...

Science - 1). Assume the following: -the house has 2,000 square feet -80,000 BTU...

chemistry - A cook wants to heat 1.10kg of water from 33 C to 100 C. If he uses ...

customer service - Do you thing attentiveness is the most important in a ...

Marketing - Net-4-You is an internet service provider that charges its 1 million...