A Lights-A-Lot quality inspector examines a sample of 30 strings of lights and finds that 8 are defective.
a. What is the experimental probability that a string of lights is defective?
b. What is the best prediction of the number of defective strings of lights in a delivery of 400 strings of lights?

Write each fraction as an equivalent fraction with a denominator of 120then write the original fractions in order from samllest to largest

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

2x minus y equals 6, x plus y equals negative 3