This question concerns bit strings of length six. These bit strings can be divided up into four types depending on their initial and terminal bit. Thus the types are: 00, 01, 10, 11.
How many bit strings of length six must you select before you are sure to have at least 5 that are of the same type? (Assume that when you select bit strings you always select different ones from ones you have already selected.)

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

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 florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.