The random variable w can take on the values of 0, 1, 2, 3, or 4. The expected value of w is 2. 8. Which of the following is the best interpretation of the expected value of random variable w ?.

Afood web shows who eats who in any given habitat. every living thing, from one-celled algae to giant blue whales, needs food to survive. each food web is a possible pathway that energy and matter can follow through the habitat. a food web begins with producers: organisms that convert sunlight into usable chemical energy. the food web is completed by the decomposers who turn organic wastes, such as decaying plants, into inorganic materials, such as nutrient-rich soil. decomposers complete the cycle of life, returning nutrients to the soil or oceans for use by producers. in this food web, identify the decomposer.

What must students do with the 10 gird-ins on the math section of the psat

Did the universe cool off or get hotter as it expanded after the 'big bang"?