The average age of a company’s president is 56 years old. Assume the variable is normally distributed. If the standard deviation is four years, find the probability that the age of randomly selected president will be in the following range: a. Between 52 and 58 b. 57 and 65

square root

step-by-step explanation:

its 8

step-by-step explanation:

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

30005

yes ok