You chose 3 marbles without replacement from a bag

You chose 3 marbles without replacement from a bag containing 9 red, 12 blue, 5 yellow marbles. X is the number of blue marbles chosen.

A) Find and graph the probability distribution of X.

B) Find the mean of the random variable X

The standard enthalpies of formation for co2 g and waterl : 1. the standard enthalpies of formation for co2 g and waterl are -393.5 kjmol and -285.8 kjmol respectively. the

In reacting aluminum carbonate with hydrochloric acid 576 : in reacting aluminum carbonate with hydrochloric acid 57.6 mgof carbon dioxide was formed. what is the mass of

Determine the angular acceleration of the blade assembly : the blade assembly of an oscillating fan rotates with a constant angular velocity w1 -360rpm i with respect to the

Pure ag melts at 9618 degc and boils at 2162 degc the heat : pure ag melts at 961.8 degc and boils at 2162 degc. the heat of fusion for ag is 11.28kj per mol and the heat of

You chose 3 marbles without replacement from a bag : you chose 3 marbles without replacement from a bag containing 9 red 12 blue 5 yellow marbles. x is the number of blue

The temperature stays constant at 290 k for the air : a rigid tank initially contains 3 kg of air at 500 kpa 290 k. the tank is connected by a valve to a piston-cylinder

Consider a 1g sample of radioactive californium z98 and : consider a 1g sample of radioactive californium z98 and a245. the half life of this isotope is 45 min. on average how

Say a random variable x is drawn uniformly from between 0 : say a random variable x is drawn uniformly from between 0 and 1. say that y sin2pix. what is the covariance between x

Calculate the rms speed of a carbon dioxide molecule at : a calculate the rms speed of a carbon dioxide molecule at 25degc.b determine how many times per second it would move