in
a class of 25 students, 17 passed calculus, 13 passed chemistry,
and 8 passed physics....
in
a class of 25 students, 17 passed calculus, 13 passed chemistry,
and 8 passed physics. No one passed all three, but at least six of
them failed all three subjects. How many students failed all three
subjects?
A physics class has 50 students. Of these, 17 students are physics majors and 16 students are female. Of the physics majors, seven are female. Find the probability that a randomly selected student is female or a physics major. The probability that a randomly selected student is female or a physics major is (Round to three decimal places as needed.)
Students in Physics and Chemistry a random sample was taken
from 20 students in Physics, from which an average of 3 hours per
week was obtained with a deviation. typical of 2.5 hours, and
another sample of 30 independent chemistry students from the
previous one, which presented an average of 2.8 hours, with a
deviation. typical 2.7h. Assuming that the weekly study hours of
the two types of students follow a normal distribution,
(a) Calculate a 95% confidence interval for...
In a certain semester, 500 students enrolled in both Calculus I
and Physics I. Of these students, 82 got an A in calculus, 73 got
an A in physics, and 42 got an A in both courses. Which of the
following probabilities is the smallest? The probability that a
randomly chosen student...
Got an A in both of the two courses
Got an A in physics but not calculus
Got an A in at least one of the two courses...
In a class, there are 13 students. Out of those 13, 5 students
are freshman
a) If we pick three students, without replacement, what is the
chance that at least one of them is a freshman?
b) If we pick 2 students, without replacement, what is the
chance that one of them is a freshman and one of them is not a
freshman?
c) If we pick five students, without replacement, what is the
chance that two of them are...
(a) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is
sorted with Mergesort. Count the number of comparisons made. (b)
Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is sorted
with Heapsort.
(a) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is
sorted with Mergesort. Count the number of comparisonsmade.
(b) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is
sorted with Heapsort
in a certain college, 25% of the students failed
mathematics,15% of the students failed chemistry and 10% of the
students failed both mathematics and chemistry. A student is
selected at random,
I)if he failed the exam, what is the probability that he failed
mathematics?
ii) if he failed mathematics, what is the probability that he
failed chemistry?
iii) what is the probability that he failed mathematics or
chemistry?
Q1
In a class on 50 students, 35 students passed in all subjects, 5
failed in one subject, 4 failed in two subjects and 6 failed in
three subjects.
Construct a probability distribution table for number of subjects a
student from the given class has failed in.
Calculate the Standard Deviation.
Q2
45 % of the employees in a company take public transportation daily
to go to work. For a random sample of 7 employees, what is the
probability that...