Practice Quiz Mode
Take all 4 MCQs in interactive quiz mode with timer and progress tracking
Each rock in a collection of 70 rocks was classified as either igneous, metamorphic, or sedimentary, as shown in the frequency table.
| Classification | Frequency |
|---|---|
| igneous | 10 |
| metamorphic | 33 |
| sedimentary | 27 |
If one of these rocks is selected at random, what is the probability of selecting an igneous rock?
Difficulty: Easy
A:
$\frac{10}{27}$
B:
$\frac{10}{33}$
C:
$\frac{10}{60}$
D:
$\frac{10}{70}$
A survey was conducted using a sample of history professors selected at random from the California State Universities. The professors surveyed were asked to name the publishers of their current texts. What is the largest population to which the results of the survey can be generalized?
Difficulty: Medium
A:
All professors in the United States
B:
All history professors in the United States
C:
All history professors at all California State Universities
D:
All professors at all California State Universities
A sample of oak has a density of 807 kilograms per cubic meter. The sample is in the shape of a cube, where each edge has a length of 0.90 meters. To the nearest whole number, what is the mass, in kilograms, of this sample?
Difficulty: Hard
A:
588
B:
726
C:
897
D:
1,107
How many yards are equivalent to 612 inches? (1 yard = 36 inches)
Difficulty: Easy
A:
0.059
B:
17
C:
576
D:
22,032
Premium content
Sign in and upgrade to continue reading.