Hacia dónde se recorre el punto decimal en los números grandes para ser representado en notacion científica

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

The probability that a u.s. resident has traveled to canada is 0.18 and to mexico is 0.09. a. if traveling to canada and traveling to mexico are independent events, what is the probability that a randomly-selected person has traveled to both? (page 109 in the book may ) b. it turns out that only 4% of u.s. residents have traveled to both countries. comparing this with your answer to part a, are the events independent? explain why or why not. (page 119 may ) c. using the %’s given, make a venn diagram to display this information. (don’t use your answer to part a.) d. using the conditional probability formula (page 114 in the book) and the %’s given, find the probability that a randomly-selected person has traveled to canada, if we know they have traveled to mexico.

Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. monthly temperatures: 63 degrees upper f comma 67 degrees upper f comma 71 degrees upper f comma 75 degrees upper f comma and 79 degrees upper fmonthly temperatures: 63° f, 67° f, 71° f, 75° f, and 79° f