Data set: 105, 82, 94.5, 72.5, 92, 91, 52, 86, 100, 96, 98, 109,
96, 96,...
Data set: 105, 82, 94.5, 72.5, 92, 91, 52, 86, 100, 96, 98, 109,
96, 96, 92
Suppose we have assigned grades for the 15 (student) scores in
our data.
The grade count is as follows:
A – 11 students
B – 2 students
C – 1 student
D – 0 students
F – 1 student
If a committee with 2 student members is to be formed, what is
the probability of forming a committee with one grade A and...
Suppose we have assigned grades for the 11 students in our data:
Grade A for students...
Suppose we have assigned grades for the 11 students in our data:
Grade A for students who scored≥ 90; B for students who scored≥ 80
and < 90; C for students who scored ≥ 70and < 80; D for
students who scored≥ 60and < 70; F for students who scored<
60.Following the above grade scheme, we observe that we have 8
students who received grade A, 1 student received grade B, 0
students received grade C, 1 student received grade...
A committee of 4 people to be formed from a pool of 15 students
( 7...
A committee of 4 people to be formed from a pool of 15 students
( 7 Seniors and 8 Juniors). In how many ways can that be done
knowing that every committee must have at least one Senior
student?
a) C(14,3)
b) C(14,4) - 1
c) C(7,1) + 3
d) None of the above
I counted the cases:
1 Senior 3 Juniors
2 Seniors 2 Juniors
3 Seniors 1 Junior
4 Seniors 0 Juniors
C(7,1) x C(8,3) + C(7,2) x...
A college senate consists of 10 staff members, 12 faculty
members, and 4 students. From this...
A college senate consists of 10 staff members, 12 faculty
members, and 4 students. From this group, a disciplinary committee
consisting of 2 staff members, 3 faculty members, and 1 student
must be chosen to investigate a plagiarism case. How many such
committees could be formed?
1. an urn contains 6 marbles of which 2 are blue, 2 are yellow
and 2...
1. an urn contains 6 marbles of which 2 are blue, 2 are yellow
and 2 are red. Sarah, Sally, and Sandra take their turn drawing two
marbles each, one at a time, and without replacement.
a. if sarah is the first to draw two marbles, what is the
probability she draws two blue marbles?
b. if sarah is the last to draw two marbles, what is the
probability she draws two blue marbles.
c. if sandra is the last...