easy

The continuous random variable may assume any numerical value in an interval or collection of intervals.

• True
• False

F(x) = .50 is valid.

• True
• False

Which of the following is an example of a random variable?

• The number of students who visit the Health Center
• The number of MBA applicants
• The number of guests in a basketball game
• All of the above.

The expected value is the mean of a random variable, which is also the central location for a random variable.

• True
• False

How many solutions does this linear system have?

• One Solution
• No Solutions
• Infinite Solutions
• Two Solutions

Write each product using an exponent. 
4 x 4 x 4 x 4 x 4 

• 4⁵
• 5⁴
• 4⁶
• 4⁶

A farmer has asked you for advice on the best strategy for planting wheat and corn on her 500-acre farm. To make it through harvest time, each acre of wheat she plants will require 1 person-day of labor and other expenses of $20. Each acre of corn she plants will require 5 person-days of labor and expenses of $30. The farmer has $11,400 and 1480 person-days of labor available, and she expects to make a profit of $90 per acre of wheat and $120 per acre of corn. If x = acres of wheat and y = acres of corn, which of the following is NOT a constraint?

• x + y ≤ 500
• 20x + 30y ≤ 11,400
• y ≥ 5x + 30
• x + 5y ≤ 1480

Which ordered pair is a solution to the given equation?
f(x)=2x²+3x

• (-1, 5)
• (1, 5)
• (2, 2)
• (0, 5)

Evaluate this expression using the quotient rule.

• 9⁵
• 9⁹
• 1⁵
• 9^-5

Simplify the following expression: 
xy^-7

• xy⁷
• x/y⁷
• x⁷/y
• x⁷y