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HELLO! PLEASE I NEED HELP WITH THE LAST 3 THANK YOU :)!!! Suppose approximately75%of all marketing personnel are extroverts, whereas about60%of all computer programmers are

HELLO! PLEASE I NEED HELP WITH THE LAST 3 THANK YOU :)!!!

Suppose approximately75%of all marketing personnel are extroverts, whereas about60%of all computer programmers are introverts. (For each answer, enter a number. Round your answers to three decimal places.)

(a)At a meeting of 15 marketing personnel, what is the probability that 10 or more are extroverts? .852

What is the probability that 5 or more are extroverts?

What is the probability that all are extroverts?

,013

(b)In a group of5computer programmers, what is the probability that none are introverts?

What is the probability that3or more are introverts?

What is the probability that all are introverts?

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