"A blood bank for a local hospital has a supply of plasma for which some have been contaminated with a virus causing hepatitis. If 7 of the 48 units in the supply are contaminated, what is the probability that a severely injured accident victim given 5 units of plasma will not be exposed to the hepatitis virus

The probability that the victim not getting hepatitis virus is 0.4547  

Explanation:

We have given that 7 of 48 units of blood is contaminated with virus causing hepatitis.

So probability of getting hepatitis virus is

So probability of not getting hepatitis virus = 1 - 0.1458 = 0.8542

It is given that severely injured accident victim given 5 units of plasma

So probability that the victim not getting hepatitis virus =

So the probability that the victim not getting hepatitis virus is 0.4547  

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.