Joel Berry, the point guard of the 2017 NCAA Men's Basketball Champion North Carolina Tar Heels, recently took a standardized test to try to get credit for first year Spanish by examination. His standardized score (z-value) was 1.8. The mean score for the exam was a 105 with a standard deviation of 10. The language department at Chapel Hill requires a raw score of 125 to get credit by exam for first-year Spanish. Recall z =(x-mean)/std dev a. Compute Joel's raw score (the numerical value - also known as x) b. Will Joel get credit for first year Spanish based on his exam? Why? c. What percentage of students at Carolina who take the standardized test actually get credit for first-year Spanish by examination? (Hint: find P(x > 125) using the Norm.Dist function

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear re…

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.