Defenition: Adding and subtracting decimals, Write the decimals so that the decimal points line up vertically. Add or subtract as whole numbers. Place the decimal point in the sum or difference so that it lines up vertically with the decimal points in the problem. Multiplying decimals, Multiply the decimals as though they are whole numbers. The decimal point in the product is placed so that the number of decimal places in the product is equal to the sum of the number decimal places in the factors. Dividing by a decimal number, If the divisor is not a whole number, before we divide we need to move the decimal point to the right until the divisor is a whole number. Then we have to place the decimal point in the quotient directly above the decimal point in the dividend and then divide as with whole numbers. Calculation:
According to a study by Dr. John McDougall of his live-in weight loss program at St. Helena Hospital, the people who follow his program lose between 6 and 15 pounds a month until they approach trim body weight. Let's suppose that the weight loss is uniformly distributed. We are interested in the weight loss of a randomly selected individual following the program for one month. Give the distribution of X. Enter an exact number as an integer, fraction, or decimal.