# Gabriel Allred

The University of Texas Health Science Center at San Antonio

Statistics

Statistics teacher | Verified Expert

With a Statistics major from The University of Texas Health Science Center at San Antonio, my passion lies in demystifying numbers and fostering a deep understanding of mathematical concepts. As an experienced tutor, I excel in breaking down complex statistical theories into digestible bits, empowering students to conquer any data-related challenge. My approach focuses on personalized guidance, tailored to individual learning styles, ensuring every student reaches their full potential. Let's embark on a journey of statistical mastery together.

## Questions

- What is the probability that out of 245 booked reservations that exactly 224 people show up for the flight? What is the probability that no more than 224 people show up? How are these two probabilities different?
- An automobile dealer wants to construct a pie graph to represent types of cars will July. He sold 270 cars; 45 of which were convertibles. The convertibles represent how many degrees in the circle?
- In how many different ways can 5 books be arranged on a shelf?
- If the probability of an event occurring is #1/4#, what is the probability of its complement?
- In a batch of 890 calculators, 12 were found to be defective. What is the probability that a calculator chosen at random will be defective?
- What is the mode of the set of data 13, 11, 4, 5, 6, 9, 10, 12, 15, 16?
- What is the range and mean deviation for the data set #7, 5, 2, 8, 5, 6#?
- Two urns contain white balls and yellow balls. The first urn contains 2 white balls and 7 yellow balls and the second um contains 3 white and 10 yellow. A ball is drawn at random from each urn. What is the probability that both balls are white?
- How many ways are there to roll a sum of 7 or 11 on two dice?
- Kellie flips a dime and then a quarter. How many results are possible?
- How do you find the range for 36, 17, 22, 43, 11, 56, 17, 71?
- The average of #a# and #b# is 6 and the average of #a,b,# and #c# is 11. What is the value of #c#?
- There are 25 horses and we're looking for the 1st, 2nd, and 3rd fastest horses. We can race the horses 5 at a time. What is the minimum number of races we need to find the fastest horses?
- "The graph of a normal curve is given. Use the graph to identify the values of #\mu# and #\sigma#" ?
- 15 names are in a hat, 6 girls and 9 boys. What is the probability of drawing, without replacement, two girls names in a row?
- Can I get some help please? thanks!
- The probability of rain on any particular day is 0.2. However, the probability of rain on a day after a rainy day is 0.85, whereas the probability of rain on a day after a non-rainy day is 0.1 . Question in details (below)?
- How to do this hypothesis testing question?
- A batch of 200 phones contains 195 good phones and 5 defective ones. If 2 phones are selected at random, what is the probability of selecting 1 working phone and 1 defective phone?
- How to establish a 95% and 97.5% confidence interval for the average heights of the female and male students? How to do the same for the students population regardless of the Gender. How to compare?