1. what is the correct order of the science investigation process?\n• a) conclusion → analysis → data…

1. what is the correct order of the science investigation process?\n• a) conclusion → analysis → data collection → question\n• b) question → hypothesis → experiment → analysis → conclusion\n• c) experiment → hypothesis → question → analysis\n• d) data collection → question → hypothesis → experiment\n2. which of the following best describes \probability\?\n• a) the average of a data set\n• b) the number of experiments done\n• c) the chance of an event happening\n• d) the final step in an investigation\n3. if the results of five trials are: 5, 7, 6, 8, 4, what is the mean?\n• a) 6\n• b) 7\n• c) 5\n• d) 8\n4. during an experiment, what is the purpose of repeating trials?\n• a) to make the experiment shorter\n• b) to increase accuracy and reliability\n• c) to change the hypothesis\n• d) to get only the highest result

1. what is the correct order of the science investigation process?\n• a) conclusion → analysis → data collection → question\n• b) question → hypothesis → experiment → analysis → conclusion\n• c) experiment → hypothesis → question → analysis\n• d) data collection → question → hypothesis → experiment\n2. which of the following best describes \probability\?\n• a) the average of a data set\n• b) the number of experiments done\n• c) the chance of an event happening\n• d) the final step in an investigation\n3. if the results of five trials are: 5, 7, 6, 8, 4, what is the mean?\n• a) 6\n• b) 7\n• c) 5\n• d) 8\n4. during an experiment, what is the purpose of repeating trials?\n• a) to make the experiment shorter\n• b) to increase accuracy and reliability\n• c) to change the hypothesis\n• d) to get only the highest result

Answer

Explanation:

Step1: Recall the scientific method

The scientific method starts with a question, then forming a hypothesis, conducting an experiment, analyzing data, and drawing a conclusion. So for question 1, option b is correct.

Step2: Define probability

Probability is the chance of an event happening. The average of a data set is the mean (not probability), the number of experiments is just a count, and the final step of an investigation is the conclusion. So for question 2, option c is correct.

Step3: Calculate the mean

The formula for the mean (\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}). Here (n = 5), (x_1=5), (x_2 = 7), (x_3=6), (x_4=8), (x_5 = 4). (\sum_{i=1}^{5}x_{i}=5 + 7+6 + 8+4=30). Then (\bar{x}=\frac{30}{5}=6). So for question 3, option a is correct.

Step4: Understand the purpose of repeating trials

Repeating trials in an experiment helps to reduce errors and increase the accuracy and reliability of the results. It doesn't make the experiment shorter (more trials might take longer), changing the hypothesis is a different step (usually after analysis if needed), and we don't just aim for the highest result. So for question 4, option b is correct.

Answer:

  1. B. Question → Hypothesis → Experiment → Analysis → Conclusion
  2. C. The chance of an event happening
  3. A. 6
  4. B. To increase accuracy and reliability