Friday

March 6, 2015

March 6, 2015

Posted by **aaron** on Sunday, October 18, 2009 at 10:30pm.

1)What is the probability that exactly six people are unemployed (to 4 decimals)?

2)What is the probability that exactly six people are unemployed (to 4 decimals)?

3)What is the probability that at least four people are unemployed (to 4 decimals)?

- statistics math -
**economyst**, Monday, October 19, 2009 at 11:44amAn excel spreadsheet is very helpful

for these kinds of calculations.

You could calculate these pobabilities directly. Or, you could use a poisson distribution. I'll use a Poisson here.

the formula for the poisson is

P(k;l) = (l^k)*e^(-l) / k!

where l is the expected number = 5.8

and k is the observed number.

so for 1 (and 2, they are identical)

P(k;l) = 5.8^6 *e^(-5.8) / (1*2*3*4*5*6)

= .16

take it from here.

- statistics math -
**Anonymous**, Monday, November 5, 2012 at 9:08pmklkkl

**Answer this Question**

**Related Questions**

admas - the true unemployment rate is 7% assume that 100 employable people are ...

statistics - Find the probability that among six randomly selected people, ...

statistics - Suppose that in a large population the proportion of people that ...

Statistics - Of 500 randomly selected people in new york city, 210 people had O...

statistics - according to data from the american medical association, 10% of us ...

Statistics - 12% of voters in a recent election voted on the greens candidate, ...

Statistics - According to Pew Research, the contact rate (probability of ...

statistics - the organizer of a television show must select 5 people to ...

Statistics - *Give all probabilities to two decimal places. Three daily ...

Stats- NEED HELP - According to the Census Bureau publication Current ...