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Until recently, all area codes had a 0 or a 1 as the middle digit and the first digit could not be 0 or 1. Complete parts (a) and (b) below. (a) How many area codes were possible with this arrangement? How many telephone numbers does the current 8-digit sequence permit per area code? (The first two digits that follow the area code cannot start with 0 or 1 or 2. Assume that there are no other restrictions.) There are area codes possible. (Type a whole number.) The current 8-digit sequence will permit telephone numbers. (Type a whole number.) (b) The actual number of area codes under the previous system is 152. What is the most likely reason for this. discrepancy between this number and your answer in part a? O A. The actual number of area codes is different from the answer to part a because in part (a) only an estimate of the number of area codes was calculated. The actual number of possible area codes is 152. OB. The actual number of area codes is different from the answer to part a because the answer to part (a) only accounts for some of the restrictions. OC. The actual number of area codes is different from the answer to part a because certain area codes such as 800 and others are reserved for specific uses. OD. The actual number of area codes is different from the answer to part a because there is a shortage of area codes under this system.

Until recently, all area codes had a 0 or a 1 as the middle digit and the first digit could not be 0 or 1. Complete parts (a) and (b) below. (a) How many area codes were possible with this arrangement? How many telephone numbers does the current 8-digit sequence permit per area code? (The first two digits that follow the area code cannot start with 0 or 1 or 2. Assume that there are no other restrictions.) There are area codes possible. (Type a whole number.) The current 8-digit sequence will permit telephone numbers. (Type a whole number.) (b) The actual number of area codes under the previous system is 152. What is the most likely reason for this. discrepancy between this number and your answer in part a? O A. The actual number of area codes is different from the answer to part a because in part (a) only an estimate of the number of area codes was calculated. The actual number of possible area codes is 152. OB. The actual number of area codes is different from the answer to part a because the answer to part (a) only accounts for some of the restrictions. OC. The actual number of area codes is different from the answer to part a because certain area codes such as 800 and others are reserved for specific uses. OD. The actual number of area codes is different from the answer to part a because there is a shortage of area codes under this system.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Until recently, all area codes had a 0 or a 1 as the middle digit and the first digit could not be 0 or 1. Complete parts (a) and (b) below. (a) How many area codes were possible with this arrangement? How many telephone numbers does the current 8-digit sequence permit per area code? (The first two digits that follow the area code cannot start with 0 or 1 or 2. Assume that there are no other restrictions.) ch There are (Type a whole number.) area codes possible. The current 8-digit sequence will permit (Type a whole number.) (b) The actual number of area codes under the previous system is 152. What is the most likely reason for this. discrepancy between this number and your answer in part a? OA. The actual number of area codes is different from the answer to part a because in part (a) only an estimate of the number of area codes was calculated. The actual number of possible area codes is 152. OB. The actual number of area codes is different from the answer to part a because the answer to part (a) only accounts for some of the restrictions. OC. The actual number of area codes is different from the answer to part a because certain area codes such as 800 and others are reserved for specific uses. L OD. The actual number of area codes is different from the answer to part a because there is a shortage of area codes under this system. Player.aspx?cultureld=&theme=math&style=highered&disableStandbyIndicator=true&assignmentHandlesLocale=true# F8 telephone numbers. A 11t S F9 P acer F10 O 27 of 27 F11 AMAZON E ON F12 $: PrtSc Pause Next ^ Insert
Transcribed Image Text:Until recently, all area codes had a 0 or a 1 as the middle digit and the first digit could not be 0 or 1. Complete parts (a) and (b) below. (a) How many area codes were possible with this arrangement? How many telephone numbers does the current 8-digit sequence permit per area code? (The first two digits that follow the area code cannot start with 0 or 1 or 2. Assume that there are no other restrictions.) ch There are (Type a whole number.) area codes possible. The current 8-digit sequence will permit (Type a whole number.) (b) The actual number of area codes under the previous system is 152. What is the most likely reason for this. discrepancy between this number and your answer in part a? OA. The actual number of area codes is different from the answer to part a because in part (a) only an estimate of the number of area codes was calculated. The actual number of possible area codes is 152. OB. The actual number of area codes is different from the answer to part a because the answer to part (a) only accounts for some of the restrictions. OC. The actual number of area codes is different from the answer to part a because certain area codes such as 800 and others are reserved for specific uses. L OD. The actual number of area codes is different from the answer to part a because there is a shortage of area codes under this system. Player.aspx?cultureld=&theme=math&style=highered&disableStandbyIndicator=true&assignmentHandlesLocale=true# F8 telephone numbers. A 11t S F9 P acer F10 O 27 of 27 F11 AMAZON E ON F12 $: PrtSc Pause Next ^ Insert
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