The grams of sugar per serving for three brands of cereal are 4 g, 10 g, and 14 g. The probability of choosing a cereal with 4 grams of sugar is 1/4 . The probability of choosing a cereal with 10 grams of sugar is 5/8 . The probability of choosing a cereal with 14 grams of sugar is 1/8 . What is the expected value of the number of grams of sugar in cereal?

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point