Aforeman for an injection-moulding firm concedes that 10% of his shifts, he forget to shut off the injection machine on his line. this causes the machine to overheat, increasing the probability that a defective moulding will be produced during the early morning run from 2% to 20%. what proportion of the mouldings from the early morning run may be expected to be defective?

If n stands for number sold and c stands for cost per item, in which column would you use the formula: ? a. column d c. column f b. column e d. column g

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

What percent of 18 is 24? and plz explain thx.