General Mathematics Entrance Exam

What is the purpose of regression analysis?

• To find the average of data points

• To establish a relationship between variables

• To calculate probabilities

• To summarize data in a histogram

A bell curve is characterized by:

• A single peak (mode) at the center

• Two tails of equal length

• Asymmetry

• Multiple peaks

The null hypothesis (H0) typically states that:

• There is no significant effect

• There is a significant effect

• The data is skewed

• The sample is biased

What is a proposition in logic?

• An uncertain statement

• A statement that is either true or false

• A mathematical function

• An opinion

The logarithmic function is the inverse of what type of function?

• Polynomial

• Linear

• Exponential

• Trigonometric

The correlation coefficient measures:

• The mean of data points

• The strength and direction of a relationship between two variables

• The median of a dataset

• Variability within a dataset

Which of the following is an example of a syllogism?

• All birds can fly. A sparrow is a bird. Therefore, a sparrow can fly.

• If it rains, the streets get wet. It is not raining. The streets are dry.

• All mammals are warm-blooded. A cow is a mammal. Therefore, cows are warm-blooded.

• Both a and c.

A probability distribution table summarizes:

• Only the outcomes of random variables

• Outcomes and their associated probabilities

• The mean of a dataset

• The count of total observations

A one-sample t-test is used to:

• Compare two means

• Compare a sample mean to a known population mean

• Test frequencies

• Assess variance

Which statement is true regarding a z-test?

• It is always used for small samples

• It compares variance between two samples

• It is used when the population standard deviation is known

• It is less powerful than a t-test