Question

7. | Insurance: Auto State Farm Insurance studies show that in Colorado, 55% of the auto insurance claims submitted for property damage are submitted by males under 25 years of age. Suppose 10 property damage claims involving automobiles are selected at random (a) Let r be the number of claims made by males under age 25. Make a histo- gram for the r-distribution probabilities (b) What is the probability that six or more claims are made by males under age 25? (c) What is the expected number of claims made by males under age 25? What is the standard deviation of the r-probability distribution? 8. I Quality Control: Pens A stationery store has decided to accept a large ship- ment of ball-point pens if an inspection of 20 randomly selected pens yields no more than two defective pens. (a) Find the probability that this shipment is accepted if 5% of the total ship- ment is defective (b) Find the probability that this shipment is not accepted if 15% of the total shipment is defective. 9. Criminal Justice: Inmates According to Harper's Index, 50% of all federal inmates are serving time for drug dealing. A random sample of 16 federal inmates is selected. (a) What is the probability that 12 or more are serving time for drug dealing? (b) What is the probability that 7 or fewer are serving time for drug dealing? (c) What is the expected number of inmates serving time for drug dealing?

PLZ PLZ help me with number 7,8,9 plz write the answer in text not in image since its hard to read from pic, thank you!

Answer 1

0 Given 'n-2。 a) ti, find the Probabilit that thi 8 shipment is accertu if s of the total shirment is defetive 045 X: Number of defectives in the Sammple İsthemial N°ω tte fn»bability of Shipment is amepted -r(xy 90-0 Qc 0.1244

totot ototo e ?2uiied Probabilts o595 Given P 55 0.SS .2384 o 1665 0- 0763 to-6Z07 0. 00 25

Standasd deviation - i-573 0.0383 ナ0.1746 ean -