The weights of bags of ready to eat salad are normally distributed with a mean of 300 grams and a standard deviation of 9 gram. what percent of the bags weigh less than 291 grams ? 1.) 34% 2.)13.5% 3.)16% 4.) 36.5%

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

She should use 12/3 to measure