HW Score: 58 82%, 10 of 17 pts m Score: 0 of 1 pt en 5.2.26 Assigned Media | ? Q

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HW Score: 58 82%, 10 of 17 pts m Score: 0 of 1 pt en 5.2.26 Assigned Media | ? Question Help | * sr ey sho d that 73% of adults n ed corect on eye lasses, contacts, surgery, etc for their eyes ght at least 9 of them need correction for their eyesight. Is 9 a signific antly high number of adults r 10 adults are rand nly elected find the ability that equiring eyosight correction? The probabity that at least 9 of the 10 adults require eyesight correction is Round to three decimal places as needed.) Is 2 1) 1) 1) 1) 1) 1) 1) Enter your answer in the answer box and then click Check Answer. Clear All at to study next. go to your Study Plan.

Explanation / Answer

Here we use binomial distribution formula

P=nCr p^r q^(n-r)

n=10

r=9

p=0.73

q=1-p =1-0.73 = 0.27

P(x>= 9 ) = 1-P(x=10)

              =1 - 10C10 (0.73)^10 (0.27)^(10-10)

              = 1 - 0.042976258

              = 0.957

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