find the likelihood ratio for testing H0 use the fact that the sum of independent Poisson random variables follows a poisson distribution

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?