There are 7 yellow roses, & pink roses, 2 black roses and is red roses in a vase. what is the probability you would randomly pick a black rose? in percentage .
F. a fair coin is thrown in the air four times. if the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss? a. 0 b. 1/16 c. 1/8 d. 1/2