Answer
Answers may vary. The class comprised of 4 left-handed students and 16 right-handed students.
a) 3.16%
b) 63.16%
c) 16.8%
Work Step by Step
a)
P(both students are left-handed)
$4/20 * 3/19 = 12/380$
$12/380 = 6/190$
$6/190 = .03158$
b)
P(both students are right-handed)
$16/20 * 15/19 = 240/380$
$240/380 = .63158$
c)
P(1st student is right-handed, 2nd student is left-handed)
$16/20*4/19$
$64/380$
$32/190$
$16/95$
$.16842$
