Fifty-five percent of the members of the junior varsity swim team wear glasses. of the team memebers who do not wear glasses, 30 percent of them are in the 10th grade.
to the nearest whole percent, what is the probability that a randomly chosen member of the jv swim team does not wear glasses and is in the 10th grade?
a)14%
b)17%
c)55%
d)67%

The correct answer is a) 14%
55% of the team wear glasses
45% do not wear glasses
30% of these 45% are in 10th grade
therefore (0.30)(0.45) of the team are 10th grade students who do not wear glasses.
(0.30)(0.45) = 0.135 = 13.5%
this means that 13.5% of the swim team are 10th grade students who do not wear glasses.
if we choose a member randomly from the swim team, the probability of choosing a 10th grade student who does not wear glasses is 13.5%, which rounds up to 14%.

answer: a.14%

step-by-step explanation: