Rochelle Xue

Numerade Educator

STEM Student

Biography

Hi everyone! I am a Computer Engineering major at Purdue University. I have always had a passion for math, and since it can be very challenging, it is my mission to help others with math as well. I hope you find my videos helpful!

Education

Rochelle has not yet added their education credentials.

Educator Statistics

Numerade tutor for 4 years

41 Students Helped

Topics Covered

Breaking Limits: Unlock Your Potential with Our Expert Solutions

Exploring the World of Derivatives: A Comprehensive Guide

Rochelle's Textbook Answer Videos

1

Rochelle's Quick Ask Videos

Intro Stats / AP Statistics

For a medical study, a researcher wishes to select people in the
middle 60% of the population based on a blood pressure. If the mean
of blood pressure is 129 and the standard deviation is 5,
find the lower and upper blood pressure readings that would
qualify the people in the study.

Intro Stats / AP Statistics

Approximate the probability that in 66 tosses of a fair die,
fewer than 11 fives will be obtained. Express the probability as a
decimal rounded to the nearest thousandth

Intro Stats / AP Statistics

If a researcher wants to have a distribution of a sample that is
approximately normal then that researcher should collect a sample
with sample size greater than 30.
True ___
False ___

Intro Stats / AP Statistics

Approximately 35% of obese patients develop diabetes. Answer the
following questions if a physician sees 12 patients who are obese.
What is the probability that half of them will develop
diabetes?
Suppose that the probability that a child living in an urban
area in the United States is obese is 22%. If a social worker sees
20 children living in urban areas, answer the following: What is
the probability that none are obese?

Intro Stats / AP Statistics

The probability that a certain make of car will need repairs in the first seven months is 0.3. A dealer sells five such cars. What is the probability that at least one of them will require repairs in the first seven months? Round your final answer to four decimal places

Intro Stats / AP Statistics

According to Discover magazine, 95% of Indy race drivers will
survive a crash under certain conditions. Given those conditions,
what is the probability that exactly 12 of 15 Indy race drivers
will survive a crash?
Give proper and complete answer

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