Question

Assume that you are to select digits from the set {1,2,3,5,9} { 1 , 2 , 3 , 5 , 9 } to form a number between 10 and 900. (1) HOW MANY such numbers can be formed if digits are not repeated? (2) HOW MANY such numbers can be formed if digits can be repeated?

Name: assume that you are to select digits from the set 12359 1 2 3 5 9 to form a number between 10 and 900 1 how many such numbers can be formed if digits are not repeated 2 how many such numbers 34702
Uploaded: 2023-03-01T03:56:17-08:00
Duration: 3 min 18 s
Channel: Sri K
Description: assume that you are to select digits from the set 12359 1 2 3 5 9 to form a number between 10 and 900 1 how many such numbers can be formed if digits are not repeated 2 how many such numbers 34702

          Assume that you are to select digits from the set {1,2,3,5,9} {
1 , 2 , 3 , 5 , 9 } to form a number between 10 and 900.
(1) HOW MANY such numbers can be formed if digits are not
repeated?
(2) HOW MANY such numbers can be formed if digits can be
repeated?

Added by Catalina M.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Sri K

03/01/2023

Step 1

For 2-digit numbers, there are 5 choices for the first digit (1, 2, 3, 5, or 9) and 4 choices for the second digit (since it cannot be the same as the first digit). So there are 5 * 4 = 20 possible 2-digit numbers. For 3-digit numbers, there are 4 choices for Show more…

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Assume that you are to select digits from the set {1,2,3,5,9} { 1 , 2 , 3 , 5 , 9 } to form a number between 10 and 900. (1) HOW MANY such numbers can be formed if digits are not repeated? (2) HOW MANY such numbers can be formed if digits can be repeated?