Question

A bag contains

10

10

g

r

e

e

n

g

r

e

e

n

marbles,

9

9

b

l

a

c

k

b

l

a

c

k

marbles,

7

7

y

e

l

l

o

w

y

e

l

l

o

w

marbles. If one marble is drawn from the bag then replaced, what is the probability of drawing a

g

r

e

e

n

g

r

e

e

n

marble then a

y

e

l

l

o

w

y

e

l

l

o

w

marble?

In a number guessing game. You ask a person to guess a number from one 1 to 10. If the person makes a random guess, what is the probability their guess will be less than

9

9

?

A bag contains

9

9

b

l

u

e

b

l

u

e

marbles,

7

7

y

e

l

l

o

w

y

e

l

l

o

w

marbles,

10

10

b

l

a

c

k

b

l

a

c

k

marbles. If one marble is drawn from the bag but not replaced, what is the probability of drawing a

b

l

u

e

b

l

u

e

marble then a

b

l

a

c

k

b

l

a

c

k

marble?

Answer 1