What is the answer to 3/4 - 1/6
1 answer:
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Answer: The required expression is 3x+4.
Step-by-step explanation:
Since we have given that
Let the number of wristbands that Shelly has be 'x'
Let the number of wristbands that Kaitaia has be
Let the number of wristbands that Rea has be three more than twice the number that shelly has be
According to question, the expression that shows the number of wristbands more Katia has than Rea is given by
Hence, the required expression is 3x+4.
Answer:
Options A, B and C are correct.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean and standard deviation
From the Central Limit Theorem, we have that:
The larger the sample size, the closer to the normal distribution the distribution of sample means is.
No matter the sample size, the mean is the same.
The larger the sample size, the smaller the standard deviation.
The smaller the sample size, the larger the standard deviation.
So the correct options are:
A, B, C