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I am Lyosha [343]
3 years ago
10

There are 19 identical socks. How many pairs of socks are there? Will there be any socks without a match? If so, how many?

Mathematics
2 answers:
9966 [12]3 years ago
6 0
Each pair has 2 socks so 19÷2= 9 with 1 remaining unmatched sock.
vodomira [7]3 years ago
5 0
Solve:-

19 identical socks

19 ÷ 2 = 9.5

9 pairs of socks with 1 sock left.

How many pairs of socks are there? 9
Will there be any socks without a match? Yes
If so, how many? 1
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The sampling distribution of the sample mean of size 30 will be approximately normal with mean 15 and standard deviation 2.19.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

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