A survey showed that 72% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 18 adults are

Question

3 years ago

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A survey showed that 72% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 18 adults are

randomly selected, find the probability that no more than 1 of them need correction for their eyesight. Is 1 a significantly low number of adults requiring eyesight correction?

Mathematics

1 answer:

luda_lava [24] · Answer 1 · 2022-03-01T14:20:10+03:00

Answer:

Step-by-step explanation:

Given that a survey showed that 72% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight

X - number of people who need correction for their eyesight

X is binomial since each event is independent and there are only two outcmes.

X (18, 0.72)

Required probability = the probability that no more than 1 of them need correction for their eyesight.

=P(X=0)+P(X=1)=0.00000296+0.000137

=0.00014

Yes 1 is a significantly low number as probability is almost zero.

A survey showed that 72​% of adults need correction​ (eyeglasses, contacts,​ surgery, etc.) for their eyesight. If 18 adults are

A survey showed that 72% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 18 adults are