Subjects
PRICING
COURSES
SIGN IN
Start Free Trial
Moustapha A.
Tutor since 2000 (Math/STAT) University level
Tutor Satisfaction Guarantee
Linear Algebra
TutorMe
Question:

Solve the following system of linear equations: $(x+y=5\\x-y=1$)

Moustapha A.
Answer:

add the first equation to the second equation to get $$x=3$$, then substitute back in the first equation to get $$y=2$$.

Discrete Math
TutorMe
Question:

At a college, 546 students have taken a course in calculus, 178 have taken a course in discrete mathematics, and 165 have taken a course in both calculus and discrete mathematics. How many students have taken a course in either calculus or discrete mathematics?: *

Moustapha A.
Answer:

546+178-165= 559 students

Statistics
TutorMe
Question:

If a random sample of size n=100 is drawn from a population having µ=9 and σ =5, determine the probability that the mean from the sample will be (i) At most 10 (ii) At least 8.5

Moustapha A.
Answer:

(i) p (mean ≤ 10) = p (z ≤ $$\frac{10-9}{5/\sqrt{100}}$$) = 0.9773 = 97.73% (ii) p (mean ≥ 8.5) = p (z ≥ $$\frac{8.5-9}{5/\sqrt{100}}$$) = 0.8413 = 84.13%

Send a message explaining your
needs and Moustapha will reply soon.
Contact Moustapha
Ready now? Request a lesson.
Start Session
FAQs
What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Session" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.
Made in California
© 2017 TutorMe.com, Inc.