What is the importance of assumptions in statistic in daily life?

What is 2 divided by 0.8? There is a .39 probability that john will purchase a new car a .73 probability that Mary will purchase a new car and a .36 percent probability that both will purchase a new car. what is the probabilit? What is the average weight for a 11 yr old boy who is 5'3? What statistical concept is used to explain the natural difference that exists between a sample mean and corresponding population mean? Data formats and data collection? How do you do a Holocaust statistics pie graph? How much do you win with 4 numbers on the hoosier lotto? Average hight for a 16 year old? What is the probability of drawing 4 of a kind with any other card in a standard deck of cards without replacement? Does coffee affect the accuracy of an STD blood test? What type of curve does logistic growth exhibit on a graph? What color are hearts in a deck of cards? If beta coefficient is 1.4 what is the required rate of return? How much is 10 percent of 15000? If two events cannot occur at the same time those events are considered to be? Must randomly select 5 people out of 26 what is the probability that the 5 youngest are selected? After popping your cherry how much blood is supposed to come out? Why are open-ended frequency distributions necessary? What kind of data is represented in a line graph? What symbols represents 1000?