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Natalka [10]
3 years ago
8

Need help with number 19!!!

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
7 0
2+2a           1x4a
------           ------      
   b                b

LOL, idk if this is right, but it is how i think it should be solved


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Will all random samples from a given population have the same mean? Provide an explanation with your answer.
avanturin [10]

Short answer No.


Explanation

Suppose you have a sample of coins that have the date of production on them. They go from 1990 to 2000 inclusive. There are 100 coins in each year. That means there are 1100 coins because there are 11 years. Now you pick out 10 coins without replacement. Let's say all of them are from 1999. Then the mean is 1999.


If you start again and pick out 10 and get 3 years

4 from 2000

2 from 1995

4 from 1992


Whatever the mean is, it is not 1999. The mean of the second batch is 1995.8!

5 0
3 years ago
Read 2 more answers
Is 3.8 rational or irrational
Lunna [17]

Answer:

Rational

Step-by-step explanation:

A rational number is any integer, fraction, terminating decimal, or repeating decimal.

6 0
3 years ago
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Translate the phrase, then simplify. Subtract eighty-two from one hundred fifty
emmasim [6.3K]

Answer:

It is 18

Step-by-step explanation:100-82=18

7 0
3 years ago
How do you find this answer
AURORKA [14]
You have to find the slope and where it intercepts at 
3 0
2 years ago
Im really stook does any one know 6÷3/5
IRISSAK [1]
Ok so if the <span>6÷3 does not have a bracket, then the answer would be:

</span><span>6÷3/5 = 6 * 5/3 = 2 * 5 = 10

Hope this helps!</span>
3 0
3 years ago
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