18. | Focus Problem: Personality Types We now have the tools to solve the Chapter Focus Problem. In the book Manual: A Guide to the Development and Use of the
Myers-Briggs Type Indicators by Myers and McCaulley, it was reported that
approximately 45% of all university professors are extroverts. Suppose you have
classes with six different professors.
(a) What is the probability that all six are extroverts?
(b) What is the probability that none of your professors is an extrovert?
(c) What is the probability that at least two of your professors are extroverts?
(d) In a group of six professors selected at random, what is the expected
number of extroverts? What is the standard deviation of the distribution?

Explanation is in the file

cutt.ly/nz6VGda

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation:

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

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