Dr. C D

Virginia Tech

Tutor

Biography

I'm a math tutor who has a passion for teaching math, most of my students usually love my teaching style and i love teaching them. my most recent students scored over 80% in their IGCSE uk board exams.

Education

BS Physics

Virginia Tech

Educator Statistics

Numerade tutor for 5 years

320 Students Helped

Topics Covered

Dr. C's Textbook Answer Videos

1

Dr. C's Quick Ask Videos

Determine the following probability.
Meeting at least one left-handed person in seven random
encounters on campus when the incidence rate is20%
(20 in 100 people are left-handed)

Intro Stats / AP Statistics

You are curious about the average number of yards Matthew
Stafford throws for each game for the Detroit Lions. You randomly
select 24 games and see that the average yards per game is 296.5
with a standard deviation of 30.5 yards. You want to create a 90%
confidence interval for the true average number of yards per game
he throws. What is the margin of error for this estimate?

Intro Stats / AP Statistics

A quiz consists of 12 multiple choice questions, each with 5
answer choices. If a student guesses on each question, what is the
probability that he/she will answer at least 3 questions
correctly?
Round your answer to 4 places after the decimal point.

Intro Stats / AP Statistics

The robotics team
has 11 members, 7 identify as boys
and 4 as girls. All students participate in robot design
and building, but only 4 are chosen to participate in the
annual robotics competition. If the team is chosen at random,
what is the probability that the chosen team consists of 2 boys and
2 girls?
please show steps.

Intro Stats / AP Statistics

A polling organization conducts a poll by making a random survey and is willing to accept a margin of error of 10% at a confidence level of 95% using the rule of thumb for the margin of error. What should the sample size be?

Calculus 1 / AB

The circumference of a sphere was measured to be 85 cm with a
possible error of 0.5 cm. Use linear approximation to estimate the
maximum error in the calculated surface area. Round to two decimal
places.
Estimate the relative error in the calculated surface area. Enter a
percent rounded to 2 decimal places.

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