Why are the non examples incorrect methods of random sampling

Find the probability of rolling the product 6 with a pair of two 6 sided dice

Each section of a running trail is 3/4 miles. The trail has 3 sections. Which expression tells how many miles long the entire trail is?

Martin runs 100 meters in 15 seconds. What is the equation for d, the distance in meters that Martin covers per second? 15 + d = 100 100 + d = 15 d x 15 = 100 d x 100 = 15

The measure of the compliment of an angle is 17 degrees more than the measure of the angle in degrees. Write an equation to solve the problem and find the measures of both angles

A taxi driver charges an initial $5 fee, plus $2 per mile driven. Write an equation to represent the situation. How much is the taxi service for 150 miles driven?

Find the value of x 2x+4x=5

UT bisects WV. WV = ? A. SV B. 2 (SV) C. UT D. none of the above

Evaluate 2/3 - 1/6. a. 1/6 b. 1/2 c. 5/6 d. 1

15%of $30 as a decimal

The ordered pairs model an exponential function, where j is the function name and e is the input variable. { (1, 10), (2, 50), (3, 250), (4, 1250) } What is the function equation in sequence notation?