GAT Practice and Application 2 โ Questions and Answers
Question 1: A researcher collects data on 200 students' test scores and finds the mean is 75 with a standard deviation of 10. Which score is exactly two standard deviations above the mean?
- 85
- 90
- 95 (Correct answer)
- 100
Correct answer: 95
Two standard deviations above the mean = 75 + (2 ร 10) = 95.
Question 2: A store offers a 30% discount on an item originally priced at $240. What is the sale price?
- $72
- $144
- $168 (Correct answer)
- $210
Correct answer: $168
30% of $240 is $72, so the sale price is $240 โ $72 = $168.
Question 3: Which of the following best demonstrates the application of cause-and-effect reasoning?
- Listing all national holidays in order
- Explaining how increased COโ emissions raise global temperatures (Correct answer)
- Summarizing the plot of a novel
- Categorizing animals by habitat
Correct answer: Explaining how increased COโ emissions raise global temperatures
Cause-and-effect reasoning links an action (COโ emissions) to a resulting consequence (temperature rise).
Question 4: A train travels 360 miles in 4.5 hours. What is its average speed in miles per hour?
- 70 mph
- 75 mph
- 80 mph (Correct answer)
- 90 mph
Correct answer: 80 mph
Average speed = distance รท time = 360 รท 4.5 = 80 mph.
Question 5: When applying a learned concept to a new, unfamiliar situation, which cognitive skill is primarily being used?
- Memorization
- Recall
- Transfer (Correct answer)
- Summarization
Correct answer: Transfer
Transfer is the ability to apply knowledge or skills learned in one context to a new situation.
Question 6: A cylindrical tank has a radius of 3 feet and a height of 8 feet. What is its volume? (Use ฯ โ 3.14)
- 75.36 cu ft
- 150.72 cu ft
- 226.08 cu ft (Correct answer)
- 301.44 cu ft
Correct answer: 226.08 cu ft
Volume = ฯ ร rยฒ ร h = 3.14 ร 9 ร 8 = 226.08 cubic feet.
Question 7: A student reads that plants need sunlight to make food. She then places a plant in a dark closet for two weeks and observes it wilting. This experiment best illustrates:
- Random sampling
- Hypothesis confirmation through observation (Correct answer)
- Correlation without causation
- Anecdotal evidence
Correct answer: Hypothesis confirmation through observation
The student applied a known principle and confirmed her hypothesis by observing the expected outcome.
GAT Practice and Application 2
A researcher collects data on 200 students' test scores and finds the mean is 75 with a standard deviation of 10.
Which score is exactly two standard deviations above the mean?