So the 8 dollars to enter the fair is a flat rate that everyone has to pay no matter how many rides they ride. so this would just become +8. the 3 dollars per ride becomes dependent on how many rides you ride. so if you rode 3 it would be 3(3) + 8 . where as if you rode 4 it would be 3(4) + 8. so the equation becomes y = 3x +8, where y is the total amount of money you spend and x is the number of rides you ride.
To solve the problem we must know about Z-Score.
<h3>What is Z-score?</h3>
A Z-score helps us to understand how far is the data from the mean. It is a measure of how many times the data is above or below the mean. It is given by the formula,
Where Z is the Z-score,
X is the data point,
μ is the mean and σ is the standard variable.
The life span of an appliance that has a z-score of –3 is 24 months.
Given to us
- Mean, μ = 48 months,
- standard deviation, σ = 8 months,
- Z-Score = -3
<h3> What is the life span of an appliance?</h3>
The life span of the appliance can be calculated using the Z-score formula,
Substitute the values,
Hence, the life span of an appliance that has a z-score of –3 is 24 months.
Learn more about Z-score:
brainly.com/question/13299273
Answer:
Step-by-step explanation:
The answer is 1/27
due to
(1/3)^3 = [(1)^3]/[3^3] =1/27
Best regards
Answer:25
Step-by-step explanation: