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Computer Science Ics Part 1 Chapter 5 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Which step defines the problem in model building |
<p>Step 1</p> <p>Step 2</p> <p>Step 3</p> <p>Step 4</p> |
| 2 | What is statistical modeling used for. |
<p>Predict</p> <p>Collect</p> <p>Store</p> <p>Design</p> |
| 3 | When is data removal acceptable |
<p>When many rows are missing</p> <p>When only a few rows are missing </p> <p>Always</p> <p>Never</p> |
| 4 | What technique estimats missing values using average. |
<p>Impulation</p> <p>Interpolation</p> <p>Flagging</p> <p>Removal</p> |
| 5 | Data cleaning involves |
<p>Adding more data</p> <p>Removing errors and inconsistencies</p> <p>Creating charts</p> <p>Writing reports</p> |
| 6 | What is the first step after collecting data. |
<p>Visualization </p> <p>Data preparation</p> <p>Modeling</p> <p>Presentation</p> |
| 7 | Which method is best for understanding customer preferecnes. |
<p>Survey</p> <p>Observation</p> <p>Experiment</p> <p>Case Study</p> |
| 8 | Which method allows researchers to understand cause eand effect relationships |
<p>Survey</p> <p>Observation</p> <p>Experiment</p> <p>Focus group</p> |
| 9 | Testing changes under controlled conditions is known as. |
<p>Experiment</p> <p>Survey</p> <p>Observation</p> <p>Focus group</p> |
| 10 | Watching and recording behavior without interactio is known as. |
<p>Observation </p> <p>Experiment</p> <p>Survey</p> <p>Case Study</p> |
| 11 | Which method involves asking a set of questions to a group |
<p>Experiment</p> <p>Survey</p> <p>Observation</p> <p>Interview</p> |
| 12 | In probability , what is the total numebr of outcomes called. |
<p>Favorable outcomes</p> <p>Sample space</p> <p>Random events</p> <p>Total outcomes</p> |
| 13 | Probability can be expressed as. |
<p>Only decimals</p> <p>Only percentages</p> <p>Fractions, decimals, or percentages </p> <p>Only fractions</p> |
| 14 | What is the probability of gatting heads in a fair coin toss. |
<p>0.5</p> <p>0.25</p> <p>0.75</p> <p>1</p> |
| 15 | An event with a probability of 0 is |
<p>Certain</p> <p>Impossible</p> <p>Likely</p> <p>Rare</p> |
