All about bio statistics

1. A coin is tossed 8 times. a. How many different outcomes are there? b. How many different combinations are there for 2 heads and 6 tails? c. What is the probability of getting 2 heads and 6 tails? 2. In how many ways can 10 different amino acids be arranged into a polypeptide chain of 5 amino acids IF: a. Each amino acid can only be used once b. Each amino acid can be used more than once 3. Given the following blood types and their frequency: Blood Type Frequency 0 2000 A l 600 B 300 AB 100 a. Calculate the relative frequency of each blood type b. In this particular population, what is the probability that when you encounter four individuals, the rst one is type 0, the second one is type A, the third one is type B, and the fourth one is type AB? 4. If the odds AGAINST an organism's survival are 3:?, what is the probability of its survival