What is the answer to thus problem
2 answers:
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Answer:
0.13591.
Step-by-step explanation:
We re asked to find the probability of randomly selecting a score between 1 and 2 standard deviations below the mean.
We know that z-score tells us that a data point is how many standard deviation above or below mean.
To solve our given problem, we need to find area between z-score of -2 and -1 that is .
We will use formula to solve our given problem.
Using normal distribution table, we will get:
Therefore, the probability of randomly selecting a score between 1 and 2 standard deviations below the mean would be 0.13591.
Answer:
C. Non-repeating and non-terminating.
Step-by-step explanation:
We know that, rational numbers are of the form , where q≠0 and p,q are integers.
If we take q=1, then the rational number is = p, where p is an integer.
So, option B represents a rational number.
Let us consider, = 0.31645569620253.
So, we can see that a rational number can be written in the form of repeating and terminating decimals.
So, option A and D also represents a rational number.
Therefore, option C i.e. non-repeating and non-terminating does not represents a rational number as it represents an irrational number.
Hence, option C is correct.