Calculate the expected value of the given random variable X. This exercise assumes familiarity with counting arguments and probability. (Round your answer to one decimal place.) X is the number of green marbles that Suzan has in her hand after she selects seven marbles from a bag containing six red marbles and five green ones.

The expected value of:

X = 3 green marbles

Step-by-step explanation:

Number of marbles in a bag = 11

Make-up of the bag = 6 red and 5 green marbles

Sussan selects 7 marbles from the bag

The probability of collecting from 5 of the green marbles = 0.45

The probability of collecting from 6 of the red marbles = 0.55

The expected value of X = the probability of selecting a green marble multiplied by the number of marbles selected

= 0.45 x 7

= 3 green marbles

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

yes

step-by-step explanation: