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# What is the average of 9 13 17 and 21?

Updated: 9/25/2023

Wiki User

6y ago

The average is 15.

Wiki User

6y ago

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Q: What is the average of 9 13 17 and 21?
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13. (9+17)/2=13

13

Average = 13

1 5 9 13 17 21

### Tell you the answers what ae prime numbers 1 5 9 13 17 21 25?

5, 13 and 17 are prime.

### How do find the median in a group of even numbers?

You average the two numbers in the middle. For example, if you have the numbers 9, 13, 17, and 20, the median is the average of 13 and 17, which is 15.

### What are 7 consectutive odd numbers of seven?

9, 11, 13, 15, 17, 19, 21

13 + 9 + 17 = 39

### What is the average of 5 9 11 13 19 21?

Add them together and divide by 6.

### What is the normal age you get your period?

Between 9 and 17. 9 being very early and 17 being very late. That makes 13 the average age.

### What is the mean of 9 13 16 12 16 15 17?

Mean is the same as average

### What is bigger eleven twenty first or nine seventeenth?

11/21 or 9/17 can be equaled by multiplying the caller. so 11/21 becomes: 17*11 and 17*21= 187/357 and 9/17 becomes: 21*9 and 21*17= 189/357 As can be seen 189/357 &gt; 187/357. So 9/17 &gt; 11/21