PCAT-SECTION3 Online Practice Questions and Answers

Correct Answer: D

The average of a set of numbers is calculated by:

Correct Answer: C

The number 239 is expressed in scientific notation by first expressing the value in terms of a real number such that 1 a < 10. In this case, the number becomes 2.39. In order to retain the original number, the number must be multiplied by 100 which, in terms of exponents, is 102. Thus, in scientific notation, 239 =

2.39 × 100 = 2.39 × 102.

Correct Answer: C

To solve the inequality 3x 9 > 1 2x, you need to collect like terms ofxon one side of the inequality and all other values to the other side. You first add 9 to both sides of the inequality:

You then add 2xto both sides of the inequality:

Dividing both sides by 5 yieldsx> 2.

Correct Answer: A

The equation is in the form of a quadratic equationax2 +bx+c= 0, where a = 1, b=2, and c=1. To solve this

problem, you use the quadratic formula or

Correct Answer: C

The slope of a line that passes through the points (3, 3) and (3, 3) can be found by:

Correct Answer: C

Correct Answer: A

Correct Answer: C

You are asked to determine the probability of randomly selecting one face card (king, queen, or jack) of a spade suit from two standard decks of cards. Because there are two decks of cards, a single card can be selected from two decks inn= 104 different ways. Since there are 3 face cards of a spade suit in one deck of cards, such a card can be drawn from the two decks ins= 6 different ways. Thus, the probability that the selected card is a face card of a spade suit is:p=s/n= 6/104

Correct Answer: A

The mode is the measurement that is the most frequent or common value in the data set. In this example, the mode is 3.7mL, because it occurs twice, more than any of the other measurements that occur only once.

Correct Answer: D