On a standardized exam, the scores are normally distributed with a mean of 300 and a standard deviation of 20. Find the Z-score of a person who scored 270 on the exam. Thank

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

Can someone me do math because i am having a breakdown rn because i don’t get it