There are 10 black balls and 7 red balls in an urn. If 3 balls are drawn without replacement, what is the probability that exactly 2 black balls are drawn? Express your answer as a fraction or a decimal number rounded to four decimal places.

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.