Question

Random-digit dialing. To ascertain the effectiveness of their advertising campaigns, firms frequently conduct telephone interviews with consumers using random-digit dialing. With this approach, a random number generator mechanically creates the sample of phone numbers to be called. Each digit in the phone number is randomly selected from the possible digits 0, 1, 2, . . . , 9. Use the procedure to generate five seven-digit telephone numbers whose first three digits (area code) are 373.

Short answer

Seven-digit numbers:$\{\text{3732349,3734657,3735892,3731254,}\text{3731569}\}$

Step-by-step solution

Defining random-digit dialing

Random-digit dialing is a method of generating telephone numbers with the help of software and calling on them for specific reasons. Generally, this type of activity is followed by sales professionals in a company when they try to induce customers to purchase goods or services.

Elucidating  telephone numbers

The telephone numbers consist of seven digits where the first three digits are 373, and the other four digits have been randomly chosen as shown below:

$\{\text{3732349,3734657,3735892,3731254,}\text{3731569}\}$