# Ezekiel Anderson

Statistics teacher | Tutor for 7 years

With a degree in Statistics from Delaware State University, my passion lies in unraveling the complexities of data. Equipped with a deep understanding of statistical methodologies, I strive to empower students to conquer any numerical challenge they encounter. From probability theory to regression analysis, I am committed to fostering a clear understanding of statistical concepts. Let's navigate the world of numbers together, turning confusion into clarity one question at a time.

## Questions

A lottery has a $100 000 first prize, a $25 000 second prize, and five $500 third prizes. A total of 50000 tickets are sold. What is the probability of winning a prize in this lottery?

An eccentric professor believes that a child with IQ 95 should have reading score 70. What is the equation of the professor's regression line for predicting reading score from IQ?

What is a five number summary?

- Consider a Poisson distribution with #μ=3#. What is #P(x≥2)#?
- A student read that we are 95% confident that the average score of young men on the quantitative part of the National Assessment of Educational Progress is 267.8 to 276.2. ?
- Find the number of “words” with four distinct letters that can be made from the letters "ORANGES"?
- A professor's final exam has a mean of 60 and a standard deviation of 12. She decides that it was too difficult, so she adds 15 points to each student's score. Rather than recalculate the mean and standard deviation for the 442 scores, she remembers that she can use the linear transformation rules to recalculate the mean and standard deviation. What are the revised mean and standard deviation of her final exam?
- A distribution has a mean of 10400.93 and a standard deviation of 5112.49. What is one standard deviation below the mean?
- What is the standard deviation of 1, 2, 3, 4, and 5?
- Given data points are #28, 30, 29, 26, 31# and #30#, find standard deviation step by step?
- What are the mean and standard deviation of the probability density function given by #(p(x))/k=(1-1/(1-x))# for # x in [2,10]#, in terms of k, with k being a constant such that the cumulative density across the range of x is equal to 1?
- What is the mode, median and mean of 52, 61, 49, 52, 49, 52, 41, 58?
- What are the mean and standard deviation of the probability density function given by #(p(x))/k=x^3-4x# for # x in [0,2]#, in terms of k, with k being a constant such that the cumulative density across the range of x is equal to 1?
- For the following data set, the box in a box-and-whisker plot is drawn between which two numbers?
- How does MANOVA differ from MANOVA?
- When Is The Median Of A Set Of Data One Of The Numbers Of The Data Set? B.Only If There Is An Odd Number Of Elements. C.Only If There Is An Even Number Of Elements *Write In A Sentences Of Why The Answer Is Correct.
- A standard die is rolled 4 times. What is the probability of rolling two 1s, one 2, and one 3?
- From all the permutations of 5 different letters from the 7 letters D, E, C, I, M, A, and L, how many begin and end with a consonant?
- How do you find the median of an even number of numbers?
- Five cards are dealt from a standard deck of 52 cards. How many different 5-card hands will contain exactly 3 kings and exactly 2 aces?