Marginal Probability

Calculate the margins of the two-way table shown. How many total participants responded in the survey?

Tags

S.ID.5

What is the probability of having no commute?

Mathematical Equivalence

ON

Answer explanation

Fractions must be reduced to the simplest form.

Each decimal approximation should be rounded to at least three decimal places.

Each percentage should have a percent sign to the nearest tenth (%).

Tags

S.ID.5

Of the 400 people who purchased concessions, 50% of them bought a soda. This is an example of

• Joint Frequency

• Marginal Frequency

• Joint Relative Frequency

• Marginal Relative Frequency

• Conditional Relative Frequency

Which of these values below is a marginal frequency?

• 182

• 120

• 46

• 10

What is the required condition for two random variables X and Y to be stochastically independent?

• Joint p.d.f of X and Y = Marginal p.d.f of X + Marginal p.d.f of Y

• Joint p.d.f of X and Y = Marginal p.d.f of X - Marginal p.d.f of Y

• Joint p.d.f of X and Y = Marginal p.d.f of X * Marginal p.d.f of Y

• Marginal p.d.f of X = Marginal p.d.f of Y

What is meant by the marginal p.d.f of the random variable X

If you are in interested in a single event irrespective of any other event, you are looking for the...

• marginal probability

• conditional probability

• impendence

• sample probability

The ___________________of an event occurring (p(A)) may be thought of as an unconditional probability. It is not conditioned on another event. Example: the probability that a card drawn is red (p(red) = 0.5

• marginal probability

• conditional probability

• exponential probability

• normal probability