Hatah and his 3 friends are each running an equal part of a la mile race. How far is each person running?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

9is the geometric mean between x and 12

Arandom sample of size n 64 is taken from a population with population proportion p 0.38 describe the sampling distribution of p. draw a graph of this probability distribution with its a. mean and standard deviation. b. what is the probability that the sample proportion is greater than 0.5? what is the probability that the sample proportion is less than 0.3? d. what is the probability that the sample proportion is between 0.35 and 0.45?