A study was conducted in a large population of adults concerning eyeglasses for correcting reading vision.Based on an examination by a qualified professional,the individuals were judged as to whether or not they needed to wear glasses for reading.In addition it was determined whether or not they were currently using glasses for reading.The following table provides the proportions found in the study. If a single adult is selected at random from this large population,what is the probability that the adult is judged to need eyeglasses for reading?
A)0.46
B)0.42
C)0.78
D)0.60
E)0.40

Question

A study was conducted in a large population of adults concerning eyeglasses for correcting reading vision.Based on an examination by a qualified professional,the individuals were judged as to whether or not they needed to wear glasses for reading.In addition it was determined whether or not they were currently using glasses for reading.The following table provides the proportions found in the study.  If a single adult is selected at random from this large population,what is the probability that the adult is judged to need eyeglasses for reading?
A)0.46 
B)0.42 
C)0.78 
D)0.60 
E)0.40

Quizplus · Accepted Answer

The Answer of A study was conducted in a large population of adults concerning eyeglasses for correcting reading vision.Based on an examination by a qualified professional,the individuals were judged as to whether or not they needed to wear glasses for reading.In addition it was determined whether or not they were currently using glasses for reading.The following table provides the proportions found in the study.  If a single adult is selected at random from this large population,what is the probability that the adult is judged to need eyeglasses for reading?
A)0.46 
B)0.42 
C)0.78 
D)0.60 
E)0.40

A Study Was Conducted in a Large Population of Adults