Niacin is particularly important for men over 50 since it helps them to maintain healthy blood cholesterol levels. A researcher randomly selects 10 men over 50 years old and ascertains whether or not each individual's level of niacin in his bloodstream is high, average, or low.

Does this constitute a binomial experiment?

-Yes

-No, the trials are not identical.

-No, the requirement that each trial results in either a success or failure is not met.

-No, niacin levels are numerical so the outcome of each trial is not either a success or a failure.

-No, the value of p may not be constant from trial to trial.