The concentration of particles in a suspension is 30 per

Solution

Step 1 of 4

Let X is the no.of particles in the sample

For one ml the concentration of particles in a suspension is 30

a) Here we have to find the probability that a 2 ml sample will contain more than 50 particles

For 2 ml the concentration of particles in a suspension is 2(30)= 60

Here XPoisson (60)

Now X is approximately normal with

mean(=60 and

Standard deviation()=

                                    =7.75