22 1/4 × 2 1/2 = 55 25/40
60% of 55 25/40= 33 5/10
ANSWER: 33.5
21n + 7
Combine like terms.
n, 7n, 7n, 3n, and 3n are all like terms. These can be added together as 21n.
7 is the only term by itself.
Put these together to get 21n + 7.
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Answer:
i really don’t know
Step-by-step explanation:
that’s an interesting question
Answer:
Statistical error is the difference between the estimated or approximated value and the true value.
<u>Two Possible Types of Statistical Error</u>
Type I Errors occur when we reject a null hypothesis that is actually true; the probability of this occurring is denoted by alpha (a).
Type II Errors are when we accept a null hypothesis that is actually false; its probability is called beta (b).
<u>Example </u>
You test whether a new drug intervention can alleviate symptoms of an autoimmune disease.
A Type I error happens when you get false positive results: you conclude that the drug intervention improved symptoms when it actually didn’t. These improvements could have arisen from other random factors or measurement errors.
A Type II error happens when you get false negative results: you conclude that the drug intervention didn’t improve symptoms when it actually did. Your study may have missed key indicators of improvements or attributed any improvements to other factors instead.