Help me pleaseeeeeeeeeeeeeeeee
1 answer:
Answer:
The Order of operations is PEMDAS: Parentheces, Exponents, Multiplcation, Division, Addition, Subtraction
Step-by-step explanation:
Option A is not correct because it equals 9.
Option B is not correct because it equals -66
Option C is CORRECT because it equals 3 that is your ANSWER
Option D is not correct because it equals 0
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The correct option is 20.
The score found for the sample is 20.
<h3>What is Standard error?</h3>A standard error is a statistic that is applied to test the distribution of data. This metric is comparable to standard deviation. We can calculate the standard error if we know the sample size & standard deviation. It assesses the mean's precision.
Now, according to the question;
Sample mean;
Sample variance;
Thus,
Standard error SE = 1
The amount of scores with in sample must be determined here.
The standard error formula is as follows:
We might rearrange the formula as follows:
Substituting the values;
The sample's number of scores n = 19.98 = 20 (round up)
Therefore, the scores are in the sample is 20.
To know more about the Standard error, here
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