# Twee lastige statistische problemen

### #1

Mandokir

Mandokir

• 0 - 25 berichten
• 1 berichten
• Gebruiker

Geplaatst op 21 september 2012 - 13:24

Hallo mensen,

De problemen zijn in het engels.

Hello guys,

I require your help in my research project.

Problem 1:
We are filtering a suspension of 1ml containing 1250 cells, through a micro-filter containing 1500 wells with pores. This is 80% filter saturation.

If filtration were random, on avarage how manny wells would contain no cells? how manny would contain 1 cell? how manny would contain 2 cells? and 3? and more than 3?

How would this be distributed with 50% filter saturation (750 cells per ml)?

Problem 2:
If we have a 1ml of a suspension containing 1250 cells and a random distribution. How big is the chance that somewhere in that solution an boxed area exists where 2 cells are within a vollume of 1.4*10^6 square micrometers (1.4 nanoliters) or less.

How big would this chance be for a suspension of 750 cells/ml

As i dont have much statistical background i cannot solve these problems, and i have no way of knowing the difficulty of these problems. Maby someone can solve them?

Good luck.

Iemand enig idee hoe ik dit kan aanpakken?

Dit forum kan gratis blijven vanwege banners als deze. Door te registeren zal de onderstaande banner overigens verdwijnen.

#### 0 gebruiker(s) lezen dit onderwerp

0 leden, 0 bezoekers, 0 anonieme gebruikers

Ook adverteren op onze website? Lees hier meer!