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QUESTION

A survey of V.S. adults ages 50-64 found that 86% use the internet. SHOW WORK FOR EACH PLEASE!!!

A survey of V.S. adults ages 50-64 found that 86% use the internet.

You randomly select 80 adults ages 50-64 and ask them if they use the internet.

A.) Find the probability that at least 70 people use the internet.

B.) Find the Probability that at exactly 50 people say they use the internet

c..) Find the probability that more than 60 people say they use the internet.

SHOW WORK FOR EACH PLEASE!!!

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* ****** of ** ****** **** ***** found that *** *** *** ******** *** randomly ****** ** ****** **** 50-64 *** *** them ** they use *** ***************** ***** *** ******** distributions **** the ********* ************ * * *** ****** ** *********** ****** (80)· p * *** *********** ** success (086)· * * the *********** ** failure (014)· ** * ******* *** ** = ****** (9632)Since *** *** ********** ** > 5 and ** **** * are met then the ****** ******** * ** ******** distributedA) **** the *********** **** at least ** people *** *** ********** have * *** ****** and σ ******** ***** ** know **** *** Standard score:z * ** * ********* *** – **** * **** = ******* standard normal ***** ** **** ** ****** = ******** probability is ******* **** the Probability **** ** ******* 50 ****** say **** use *** internetWe **** * *** ****** *** ** =9632And ***** ** **** **** *** ******** ******* * ** * ********* *** *** **** * **** * ******** standard ****** ***** ** **** ** ****** * ******** probability ** ******* Find the probability that **** than ** people *** **** use *** ********** **** x *** μ=688 *** σ ******** since ** **** **** the ******** ******* * ** - ********* (60 – 688) * **** = ********* ******** ****** ***** ** **** ** ******* * 08195The *********** ** *****

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* survey ** VS ****** **** ***** ***** **** *** use *** *********** ******** select 80 adults **** ***** *** *** **** if **** *** the internetA) **** *** *********** **** ** least ** ****** *** *** ************* a binormial distributionP =086 and * ******** * *** ****** ****** ***** *************** ********* Find the *********** **** ** ******* ** ****** *** they use the ********** **** * *** ****** ***** * ***** *************** ************ Find *** probability **** **** **** ** people *** **** *** *** ********** **** = ncx pxqn-x ***** = 80c60 *************** 000347453 P(X>60) ************************ ************ **********

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