Free Admission Tests GRE Practice Exam with Questions & Answers | Set: 4

Exhibit.

Exhibit.

The variance of n numerical data x1, x2, x3, , , , , xn with the mean x is equal to were S is the sum of the equal differences for

For the shares of stock purchased and then sold by the investors shown, the mean of the 5 numbers for Stock Y is 50 and the corresponding mean for Stock X is 70. The variance of the 5 numbers for Stock }' is what fraction of the corresponding variance for Stock X ?

A)

B)

C)

D)

E)

A large cube and a small cube are made of granite of uniform density- The large cube has edges of length 1.2 meters and weighs 4.752 kilograms. If the small cube has edges of length 10 centimeters, what is the weight, in grains, of the small cube?

The five points C, D, E, F, and G lie on the number line, in that order from left to right, so that CD = 1.5 (EF) and DE = 1.5 (FG).

The number of employees at a certain company on January 1, 2007, was k. which was 15 percent greater than the number of employees at the company on January 1. 2006.

Exhibit.

The graph summarizes the responses from 4.500 respondents who rated their degree of confidence in each of eight United States institutions. Each respondent gave each institution one of five confidence ratings: high, moderate, little, none, or undecided.

Of the respondents who did not rate their degree of confidence in the federal government undecided, approximately what fraction rated their degree of confidence in that institution little or none?

A)

B)

C)

D)

E)