# Audrey Allen

University of Massachusetts Global

Statistics

Statistics teacher | Tutor for 6 years

I hold a degree in Statistics from the University of Massachusetts Global. With a passion for numbers and data analysis, I specialize in simplifying complex statistical concepts for students. My goal is to empower learners with the skills and confidence needed to excel in mathematics and beyond. Through personalized instruction and real-world examples, I foster a supportive learning environment where students can thrive. Let's embark on a journey of discovery together, where every question is an opportunity to learn and grow.

## Questions

- Of 800 people surveyed, 420 were male, and 325 had cell phones. Of those with cell phones, 200 were female. What is the probability that a person surveyed was either male or had a cell phone?
- How do I solve for the probability?
- An urn, randomly sampled from contains 5 Red and 3 Green poker chips. What is the probability that the first draw is Green?
- Describe what is meant by a negative relationship between two variables with an example ?
- A bag of marbles has 4 green, 6 blue and 9 red. If 4 marbles are drawn out of the bag without looking, what is the probability that there will be 3 red marbles and 1 blue marble?
- Can somebody please help me quick?
- An athletic association wants to sponsor footrace.The average time to run the course is 58.6 min, with a s.deviation of 43 min.If the association give certificates to the fastest 20% of the racers, what should the cutoff time be? (normally distribution)
- Two cards are drawn from a well-shuffled ordinary deck of 52 cards. What is the probability that they are both aces if the first card is not replaced?
- What is the probability of at least 3 girls in 7 births?
- A jar contains 125 marbles. Given 6% of the marbles are green, 6% of the marbles are blue, and the rest are red, how many red marbles are in the jar?
- Can you calculate the probability that a randomly chosen freshman studies more than 9 hours? If not, explain why not. (Use information given below)
- If 8% of all people in an area are unemployed, what is the probability that in a sample of 200 persons, there are fewer than 10 people who are unemployed?
- A federal report stated that 88% of children under 18 were covered by health insurance in 2000. How large a sample is needed to estimate the true proportion of covered children with 90% confidence with a confidence interval of .05 wide?
- Can you help me with this algebra 2 question?
- A poker hand consisting of 5 cards, is dealt from pack of 52 cards. Find the probability of obtaining: a) 1 pair b) 2 pairs c) 3 of a kind d) 4 of a kind e) a flush f) a royal flush?
- What is the geometric mean of #2/3# and #216#?
- A cooler at a soccer game holds 10 apple juices and 10 orange juices. If the first player chooses a juice and drinks it, then the second player chooses a juice, what is the probability that both players would choose orange juice?
- Records show that the probability is 0.00006 that a car will have a flat tire while driving through a certain tunnel.Find the probability that at least 2 of 10,000 cars passing through this channel will have flat tires?
- Find the number of possible arrangements of the letters in the word PENCILS if 'E' comes before 'I' ?
- What is the average of 92, 63, 77, and 89?