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a bag contains 2 white marbles and 7 purple marbles. two marbles are drawn at random. one marble is drawn and not replaced. then a second marble is drawn.

a. what is the probability of selecting a purple marble and then a white marble?

b. what is the probability of selecting two white marbles?

c. is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? show your work

A. 7:9 B. 1:4 C. Purple

Step-by-step explanation:

A. Because there are 7:9 B. Because 1:4 C. Because Purple has more

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

step-by-step explanation:

mean or average is 40.6