18science18 18science18

14-05-2017
Mathematics

contestada

A survey of 500 students in a school found that about 100 households consist of only vegetarians, 240 consist of vegetarians and non-vegetarians, and 160 consist of non vegetarians.

a. What is the probability that one of the households surveyed, chosen at random, consists of vegetarians or non vegetarians?

Respuesta :

jorel1380 jorel1380

14-05-2017

100+160/500 consist of only vegetarians, or only non-vegetarians, which equal 260/500=13/25 probability. ☺☺☺☺

Answer Link

Otras preguntas

How many grams of water will be produced if 4.6 moles of oxygen are consumed?

Compare and contrast hypothesis and theory

A model airplane will be an exact copy of the original, but at 1/50 the size. The original airplane is 230 feet long. How many feet long should the model be? St

PLEASE CHOOSE CAREFULLY!!!!!

Prove by contradiction that the interval (a, b.has no minimum element.

Which is an aspect of city life that might catch a human ecologist's attention? the nimby moveme?

Achievement batteries tend to be ________ instruments, whereas measures of achievement in specific subject areas tend to be ________ instruments.

Helper t cells and regulatory t cells ________. a.include approximately 10—15 percent of the circulating lymphocytes b.can differentiate into plasmocytes when a

Achievement batteries tend to be ________ instruments, whereas measures of achievement in specific subject areas tend to be ________ instruments.

For a craft project, chris cut a circle out of a square of cardboard that was 7 centimeters on a side. if the circle was as large as possible and was all in 1 p