Hello!
The number of tickets is dependent on age, so age is the independent variable.
Think of it as a y = mx equation. In this equation, x is the input, and y changes depending on the value of x inputted.
In this situation, y is the number of tickets, as y changes depending on the age x inputted. x is age, the independent variable.
Answer:
0.1354 = 13.54% probability that exactly one of these three blue ray players is defective.
Step-by-step explanation:
For each player, there are only two possible outcomes. Either it is defective, or it is not. The probability of a player being defective is independent of any other ray. This means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
Five percent of all blue ray players manufactured by a large electronics company are defective.
This means that 
A quality control inspector randomly selects three players from the production line.
This means that 
What is the probability that exactly one of these three blue ray players is defective?
This is P(X = 1). So


0.1354 = 13.54% probability that exactly one of these three blue ray players is defective.
Answer:
The answer is B.
Step-by-step explanation:
Two angles that add up to 90° are called complementary angles.