Practice Math TEAS TEST

Correct Answer: D

Rationale: The correct answer is D: No correlation. This is because the scatter plot does not show a clear pattern or trend between exam scores and heights. There is no apparent increase or decrease in one variable as the other variable changes. It indicates that there is no relationship between the two variables. Choice A (Positive) is incorrect because there is no consistent upward trend in the data points. Choice B (Positive and Negative) is incorrect as there is no presence of both positive and negative correlations simultaneously. Choice C (Negative) is incorrect since there is no consistent downward trend in the data points. The absence of any clear trend or pattern indicates a lack of correlation, making choice D the correct answer.

Correct Answer: A

Rationale: The correct answer is A because it describes a scenario with no correlation between two variables. In this case, as class attendance decreases, the overall grade remains the same, indicating that there is no relationship between attendance and grade. This lack of change in grade despite attendance levels demonstrates no correlation between the variables. Choice B is incorrect because it shows a negative correlation between exercise hours and weight gain. Choice C is incorrect as it represents a negative correlation between miles driven and gasoline in the tank. Choice D is incorrect as it illustrates a positive correlation between water intake and plant growth rate.

Correct Answer: C

Rationale: The correct answer is C: Bell-shaped. This is because a symmetric distribution with a single peak is characteristic of a bell-shaped distribution, also known as a normal distribution. In a bell-shaped distribution, the data is evenly distributed around the mean, creating a symmetrical pattern. Choice A (Uniform) is incorrect because a uniform distribution would show an equal frequency of weights across all values, without a distinct peak. Choice B (Bimodal) is incorrect because a bimodal distribution would have two distinct peaks, indicating two separate groups of weights rather than a single peak. Choice D (Skewed right) is incorrect because a right-skewed distribution would have a tail extending to the right, with the majority of weights concentrated on the left side, not centered around a single peak.

Correct Answer: A

Rationale: Correct Answer: A Rationale: 1. Given equation: D = 2R 2. To find the relationship between D and R, we see that D is equal to 2 times R. 3. Thus, D is twice as much as R, making choice A the correct answer. 4. Other choices are incorrect: - B: R is twice as much as D (incorrect as the equation shows D is twice R). - C: R is two times D (incorrect as the equation states D is two times R). - D: D is two more than R (incorrect as D is actually two times R).

Correct Answer: A

Rationale: To correctly order the numbers from least to greatest, we start by comparing the negative numbers first. The most negative number is -271.906, followed by -193.823. Then, we move on to the positive numbers, starting with 145.884 and ending with 235.971. Therefore, the correct order is -271.906, -193.823, 145.884, 235.971 (Option A). Choice B is incorrect because it incorrectly places 235.971 before -193.823. Choice C is incorrect as it places 145.884 before -193.823. Choice D is incorrect because it swaps the positions of -193.823 and -271.906.