Find the standard deviation for the given data. Round your answer to one more decimal place than the original data (use formula on first page). 19, 16, 12, 13, 18, 16, 18,7,11
O 3.7
1.8
4.0
4.2.

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Vertical angles must check all that apply