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In a company, emails sent from one employee to another are tracked as follows: Mr. Cooper sends 3 emails to Mrs. Sanders. Mrs. Sanders sends 4 emails to Ms. Bighton, Ms. Bighton send 1 email to Mr. Ortega and Mr. Ortega does not send anyone any emails. Furthermore, Mrs. Sanders sends Mr. Cooper 3 emails, Mrs. Bighton sends Mr. Cooper 2 emails.
A). Draw a graph to represent connections within this company, based on email data, where each vertex represents a person and an edge joining two vertices represents the presence or absence of email communication between them (in either direction).
B). Find the beta index of the graph you found in part (a).
If there are 500 students in the school, what is the probability that everyone will pass the exam
Standard deviation equal to 500 and 50 hours, respectively. Find the probability that a random sample of 15 bulbs will have an average life of less than 475 hours.
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At that point, the mean becomes a random variable and the means of some of the different samples are 187, 192, 184, . . . 196. What can you say about the means of the sample with respect to the population mean?
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