Nursing Elites

1. When the sampling distribution of means is plotted, which of the following is true?

• A. The distribution is approximately normal.
• B. The distribution is positively skewed.
• C. The distribution is negatively skewed.
• D. There is no predictable shape to the distribution.

Correct answer: A

Rationale: When the sampling distribution of means is plotted, the distribution tends to be approximately normal, especially as the sample size increases. This phenomenon is described by the Central Limit Theorem, which states that the sampling distribution of the sample mean will be normally distributed regardless of the shape of the original population distribution as long as the sample size is sufficiently large. Choices B and C are incorrect because sampling distributions of means are not skewed. Choice D is incorrect because there is a predictable shape to the distribution, which is approximately normal.

2. Which of the following examples uses correct punctuation?

• A. The moderator asked the candidates, “Is each of you prepared to discuss your position on global warming?”.
• B. The moderator asked the candidates, “Is each of you prepared to discuss your position on global warming?”
• C. . The moderator asked the candidates, ‘Is each of you prepared to discuss your position on global warming?’
• D. The moderator asked the candidates, ‘Is each of you prepared to discuss your position on global warming?’

Correct answer: B

Rationale: Option B is the correct answer because it correctly places the period inside the closing quotation mark, following the closing punctuation of the sentence. This is the standard punctuation rule for quotations in American English. Choice A is incorrect as it has an extra period outside the closing quotation mark. Choice C is incorrect as the period should come after the closing quotation mark. Choice D is incorrect as it lacks the initial space before the quotation, not adhering to proper punctuation rules.

3. Which of the following is NOT a source of genetic variation in a population?

• A. Mutations in genes
• B. Genetic drift (random fluctuations in allele frequencies)
• C. Gene flow (movement of genes between populations)
• D. Blending inheritance (traits of parents are averaged in offspring)

Correct answer: D

Rationale: Rationale: A) Mutations in genes: Mutations are changes in the DNA sequence that can introduce new alleles into a population, leading to genetic variation. B) Genetic drift (random fluctuations in allele frequencies): Genetic drift refers to random changes in allele frequencies in a population, which can lead to genetic variation through chance events. C) Gene flow (movement of genes between populations): Gene flow occurs when individuals move between populations, bringing new alleles with them and increasing genetic variation within populations. D) Blending inheritance (traits of parents are averaged in offspring): Blending inheritance was a historical theory that suggested offspring inherit a blend of traits from their parents, leading to a reduction in genetic variation over time. However, this concept has been disproven by the understanding of Mendelian genetics, where traits are inherited independently and do not blend together. Therefore, blending inheritance does not contribute

4. Which of the following is NOT part of the circulatory system?

• A. Kidneys
• B. Heart
• C. Blood
• D. Blood vessels

Correct answer: A

Rationale: The correct answer is A: Kidneys. The kidneys are part of the urinary system, responsible for filtering waste and maintaining fluid balance in the body. In the circulatory system, the heart pumps blood, blood carries oxygen and nutrients, and blood vessels transport blood throughout the body. Choices B, C, and D are all components of the circulatory system, making the kidneys the correct choice as it belongs to the urinary system.

5. Which of the following sentences best represents style and clarity of expression?

• A. Without adequate preparation, the test was likely to be a failure for Zara.
• B. The test was likely to be a failure for Zara without adequate preparation.
• C. Without adequate preparation, Zara expected to fail the test.
• D. Zara expected to fail the test without adequate preparation.

Correct answer: C

Rationale: Choice C, 'Without adequate preparation, Zara expected to fail the test,' is the best option as it maintains clarity and conciseness. The subject 'Zara' is directly linked to the action 'expected to fail the test' with the cause 'Without adequate preparation' clearly stated at the beginning. This structure enhances the flow of the sentence and makes it easier to understand. Choices A, B, and D are less clear as they place the cause and effect in less optimal positions, resulting in a less effective and concise expression of the idea.

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