4(-6x – 3) + 24x = -72x + 132
Step 1 -24x – 12 + 24x = -72x + 132 Distribute Property of Equality
Step 2: –12 = -72x + 132 equivalent
Step 3: -144 = -72x Subtraction Property of equality
Step 4: 2 = x Equivalent / Division property of equality
Answer:
P=0.2613
Step-by-step explanation:
-Notice that this is a poison probability distribution problem.
-The Poisson probability function is expressed as:
where:
- x=0,1,2,3
- Euler's constant
- =mean number of occurrences.
Given that x= 2 and , the probability is calculated as:
Hence, the probability that in a randomly selected office hour, the number of student arrivals is 2 is 0.2613