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Telephone numbers are made of

Telephone numbers are made of 7 digits. Digits can be repeated but the first digit cannot be 0 or 1. How many different
1. 1 answer
2. asked by John
3. 533 views
if it can be assumed that 39.5% of all telephone #'s are unlisted, and that all telephone #'s are independent,find the
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2. asked by Rochelle
3. 465 views
Choose the correct sentence that would replace the indirect object with a pronoun:Il téléphone à ses cousins. Il les
1. 1 answer
2. 137 views
If you were writing a program application that was harvesting people's emailsand telephone numbers, explain and demonstrate how
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2. asked by leon
3. 478 views
a 5 digit telephone number is made up of three 1's and two 5's. How many extension numbers of this type can be formed
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2. asked by Anonymous
3. 360 views
One of the standard telephone numbers for directory assistance is 555−1212. How many different permutations of this telephone
1. 1 answer
2. asked by Anonymous
3. 1,786 views
A telephone dial has holes numbered from 0 to 9 inclusive, and eight of these holes are also lettered. How many different
1. 0 answers
2. asked by Sebastian
3. 437 views
The local seven-digit telephone numbers In a city have 617 as the first three digits. How many different telephone numbers are
1. 1 answer
2. asked by Brendon
3. 104 views
Using the telephone numbers listed in your local directory as your population, randomly obtain 20 samples of size 3. From each
1. 2 answers
2. asked by Anonymous
3. 507 views
A market research firm conducts telephone surveys with a 42% historical response rate. What is the probability that in a new
1. 2 answers
2. asked by Mia
3. 5,294 views