# David Armstrong

Statistics teacher | Verified Expert

I hold a degree in Statistics from Eastern Michigan University, equipping me with a solid foundation to unravel the complexities of data. With a passion for teaching, I bring clarity to statistical concepts, making them accessible to all learners. Let's navigate the world of numbers together, turning challenges into triumphs.

## Questions

Can a z-score be negative?

What is the mode of 10, 4, 13, 11, 12?

What is the largest value of the probability of an event's occurrence?

Can t-test statistics be a negative number?

What is the probability of rolling two even numbers in one roll of a pair of dice?

Find the mode of #{3,5,2,6,5,9,5,2,8,6}#?

How can the median be the greatest number in a set?

Two dice are rolled, what is the probability that their sum will be less than 13?

What is the primary objective of sampling from a population?

What is APY(Annual Percentage Yield)? How is the APY compounded semiannually at #15%#, different from the same amount compounded continuously at #14%#?

If the coefficient of determination for a data set is 0.25 and the SSE for the data set is 12, what is the SST?

The number of way in which a examiner can assign 30 marks to 8 questions given not less than 2 marks to any question is?

How many ways can 4 students be arranged in a row?

If you roll five dice, what are the odds of rolling five 5's?

A box contains 5 red, 2 white, & 3 blue marbles. If a marble is selected at random, what is the probability that it is not blue?

How do you find the mean of data set 10, 0, 2, and 8?

What is the law of large numbers?

Which measure will be affected by an outlier the most?

An urn contains 5 red& 2 black balls. Two balls are randomly selected. Let X represents the number of black balls, what are the possible values of X?

A coin is tossed 12 times. What is the probability of getting exactly 6 tails?