A chemist wishes to estimate the concentration of particles in a certain suspension. She withdraws 3 mL of the suspension and counts 48 particles. Estimate the concentration in particles per mL and find the uncertainty in the estimate.
What will be an ideal response?
Let X represent the number of particles observed in 3 mL. Let 
represent the true concentration in particles per mL. Then 
. The observed value of X is 48. The estimated concentration is 
. The uncertainty is 
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