8. Flippy, a beautiful bird, is flying south with a speed of 5 m/s. What Flippy doesn't know is that he has a little friend, Mr. Flea, riding on his back. Mr. Flea walks carefully back to
Flippy's tail (after being by his head) at a speed of 25 m/s. What is Mr. Flea's resultant
velocity?

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain