Amelia made a line plot of her scores on 25-point math quizzes. What is the difference between the total of her most frequent nu
1 answer:
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Answer: First option.
Step-by-step explanation:
Given the following equation provided in the exercise:
You can follow the steps indicated below in order to find the solution of this equation:
1. Cubing both sides of the equation, you get:
2. Finally you must subtract 8 from both sides of the equation:
You can notice that this solution matches with the first option.
Using the Central Limit Theorem, it is found that since the sample size is greater than 30, a normal approximation can be used, hence the test can be made.
<h3>Central Limit Theorem</h3>The Central Limit Theorem establishes 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 sampling distribution is also approximately normal, as long as n is at least 30.
In this problem, the distribution of lengths is skewed, however, since the sample size is of 100 greater than 30, a normal approximation can be used, hence the test can be made.
To learn more about the Central Limit Theorem, you can check brainly.com/question/24663213