Which statement is true?
a) a sample statistic can never be equal to the population parameter

b) point estimates are defined for both samples and populations

c) to calculate a sample proportion, we need to know the population size

d) to calculate the point estimate, we need to know the sample size

only one answer can be chosen

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell

What is the distance between the points (2, 5) and (5,9)?