TEAS Test Math Prep

Correct Answer: A

Rationale: The correct answer is A: Mean. The mean is calculated by summing all values and dividing by the number of values. Outliers can significantly skew the mean because they have a greater impact on the total sum. The median (B) is less affected by outliers since it is the middle value when data is sorted. The mode (C) is the most frequent value and is not affected by outliers. Choice D is incorrect as outliers can impact the mean in a small sample set.

Correct Answer: B

Rationale: To round 89632 to the nearest hundred, we look at the digit in the hundreds place, which is 6. Since 6 is greater than or equal to 5, we round up the hundreds place to the next hundred, making it 900. The correct answer is B. Choice A: 847.9 - Incorrect. This is not a correct rounding of 89632 to the nearest hundred. Choice C: 847.89 - Incorrect. This answer is not related to the rounding of 89632 to the nearest hundred. Choice D: 847.896 - Incorrect. This answer is not related to the rounding of 89632 to the nearest hundred.

Correct Answer: A

Rationale: To solve this question, we first need to find the ratio of girls to boys, which is 3:2. Then, we can set up a proportion to determine the number of girls. Since there are 3 girls for every 2 boys, the total ratio is 3+2=5 parts. To find the number of girls, we divide the total number of students by the total parts (650/5=130). Finally, we multiply the number of parts allocated to girls by the ratio of girls in the total parts (130*3=390). Therefore, there are 390 girls in Jim's school. Choice A (260) is incorrect as it does not consider the correct ratio. Choice B (130) is incorrect as it calculates the total parts instead of the number of girls directly. Choice C (65) is incorrect as it only considers one part of the ratio. Choice D (390) is incorrect as it miscalculates the number of boys, not

Correct Answer: C

Rationale: To reach $300, Bernard needs to work for $300 / $80 = 3.75 days. Since he can only work full days, he needs to work for 4 days to make at least $300. Thus, the correct answer is C. Option A (2 days), B (3 days), and D (5 days) are incorrect as they do not meet the minimum requirement of $300.

Correct Answer: C

Rationale: To solve this, let's substitute x = 2 into the given equation. Starting with the equation: Now, we substitute x = 2: Therefore, . Thus, the correct answer is C: 3. Explanation for other choices: A: If x = 2, then is not equal to 1. B: If x = 2, then is not equal to 2. D: If x = 2, then is not equal to 4.