Question

uliin of the preparation times of an order in one of the restaurants? d. 10.08 b. C. 4.08 d. 2.02 Questions 29-30: The number of Items a customer orders from a certain mail-order described by the following probability distribution: Number of Items 0 Probability .38 .45 .05 28. Wha 03 .06 t is the mean number of items ordered by a customer who receives the catalog? .02 .01 a. 0.1667 b. 1.0400 c. 0.0496 d. 3.0000 29. What is the standard deviation of the number of items ordered? a. 2.1602 b. 2.0000 c. 0.1734 d. 1.2878 Questions 30-33: The weight of adult pet cats in the U.S. is normally distributed with a mean pounds and a standard deviation of 2.1 pounds. A random sample of 150 adult pet cats in the is selected and found to have a mean weight of 11.2 pounds and a standard deviation of 1.9 p 30. The population is a. 150 adult pet cats b. All adult pet cats in the U.S. c. All U.S. pet cats who weigh 10.3 pounds. d. The cats in the sample who weighed 11.2 pounds. a. 2.1, ?_ 10.3,T-1.9, s-11.2 b. -11.2, ?: 1.9, F-10.3, s 2.1 c. -10.3, ?-2, 1, F-11.2, s-1.9 d. None of the above 31. Based on the above information, which of the following is correct?

Answer 1

PCX-x) O.O o 38 .os^ 0-13 3 b 02 о. 36 6 О.OG o, o! 2.44 98 en : ↓ Eoe).EC )] 1.2879 Ansoes DpPon (d)

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