Select all the correct answers. What were three lasting contributions of the ancient Phoenicians?
advanced shipbuilding techniques
direct democracy
written alphabet
theory of heliocentrism
deep-sea navigation methods

What is meant by a symmetrical unimodal distribution? a. a distribution is the frequency at which a certain value of a variable is obtained during a study. a symmetric unimodal distribution is a distribution where there is one value with a larger frequency than any other and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other. b. a distribution is a pattern of frequencies for the various values of a variable collected in a study. a symmetric unimodal distribution is a distribution where there is one value with a larger frequency than any other and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other. c. a distribution is the frequency at which a certain value of a variable is obtained during a study. a symmetric unimodal distribution is a distribution where there is a uniform frequency, meaning the frequency of every value is same, and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other.

Recently, there has been pressure to loosen clean air standards. use economic arguments to support or oppose this proposed action.

Which georgia shipyard produced 88 liberty ships?