Answer:

Step-by-step explanation:
From the question we are told that:
Regular fare R= $275
Discount fare of $125
Mean 
Standard deviation 
Generally, the equation for Critical Fraction is mathematically given by



From Z Distribution Table

Therefore
Reservation made is give as for High fare travellers is



Answer:

Step-by-step explanation:
The sample space of a single dice is:


Required:
The probability of rolling 3 sixes
In a sample space of a roll of die, we have:
In a roll of dice, the probability of rolling a 6 is:


In 3 rolls, the probability is:

![Pr = [\frac{1}{6}]^3](https://tex.z-dn.net/?f=Pr%20%3D%20%5B%5Cfrac%7B1%7D%7B6%7D%5D%5E3)

Answer:
<h2>
-27</h2>
Step-by-step explanation:

Apply cross product property

Calculate the product

Hope this helps...
Best regards!!
The value of y is positive 8