Every week, Petra saves of the money she earns at work. Last week, she earned $60 working. This 4 1week, she saved $10 more than she saved last week. How much did Petra earn working this week?

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?