Nanalyzing hits by certain bombs in a war, an area was partitioned into 556 regions, each with an area of 0.15 km2. a total of 505 bombs hit the combined area of 556 regions. assume that we want to find the probability that a randomly selected region had exactly three hits. in applying the poisson probability distribution formula, p(x)equalsstartfraction mu superscript x baseline times e superscript negative mu over x exclamation mark endfraction , identify the values of mu, x, and e. also, briefly describe what each of those symbols represents. identify the values of mu, x, and e.

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

Tom drove 206 miles in 3.9 hours. estimate his average speed.

Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t.inv.2t to find the value of t for the interval calculation.