Answer:
(a)

(b)


Step-by-step explanation:
Given

Solving (a): The pmf
This means that we list out the probability of each value of x.
To do this, we simply subtract the current probability value from the next.
So, we have:

The calculation is as follows:





The x values are gotten by considering where the equality sign is in each range.
means 
means 
means 
means 
means 
Solving (b):

This is calculated as:

From the given function


So:



This is calculated as:




I think x= 65 I hope this helped
According to the given information the result: m < k < j
The correct option is E.
<h3>What is negative integer?</h3>
A number with a minus (-) sign before it is said to be negative if its value is always less than zero. The left side of zero on a number line is where negative numbers are displayed. A couple more negative values include -6 and -15.
<h3>According to the given information:</h3>
Given that x is a negative integer, j must be positive because the least negative number, which is k, yields a negative number when squared. Also negative will be m.
J has the largest value, as far as we are aware.
For all x values, it is impossible to compare k and m. When x=1 and k=1 respectively, m and k are smaller.
To know more about negative integer visit:
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Answer:
20 and 3/7
Step-by-step explanation:
Answer:
6x +4 where x is amount for standard call
Step-by-step explanation: