1. Xtreme Motorsports tacks sales made throughout the day. Let X be the number of motorcycles sold during the first hour of business on a randomly selected day. The probability distribution of X is as follows. 0 1 2 3 4 Motorcycles sold X: Probability P(X): 0.35 0.3 b 0.05 0.05 a) Find the value of b (1 pt) b) Find the mean of the distribution and interpret in context (3 pts) c) Find the standard deviation of the distribution and interpret in context (3 pts) d) What is the probability that Xtreme Motorsports sells more than 1 motorcycle in the first hour of business? (2 pts) ​

Demonstrate how to keep the workplace neat and in order?

Describe alvord's tone in the two paragraphs on the history of dartmouth and its native american studies program (paras. 21-22)?

Ahypothesis test is conducted with a significance level of 5%. the alternative hypothesis states that more than 65% of a population is right-handed. the p-value for the test is calculated to be 0.03. which of the following statements is correct? we can conclude that more than 3% of the population is right-handed. we cannot conclude that more than 65% of the population is right-handed. we can conclude that more than 65% of the population is right-handed. we can conclude that exactly 3% of the population is right-handed. there is not enough information given to make a conclusion.