**Answer:**

0.6472 = 64.72% probability that a randomly selected page does not need to be retyped.

**Step-by-step explanation:**

In a **Poisson distribution**, the probability that X represents the number of successes of a random variable is given by the following formula:

In which

x is the number of sucesses

e = 2.71828 is the Euler number

is the mean in the given interval.

**Poisson distribution with an average of three errors per page**

This means that

**What is the probability that a randomly selected page does not need to be retyped?**

Probability of at most 3 errors, so:

In which

Then

0.6472 = 64.72% probability that a randomly selected page does not need to be retyped.

Can you be more specific? I need a question and I need a close up ! Lol but I’m trying to help.

**Answer:**

There are 195 countries in the world today. This total comprises 193 countries that are member states of the United Nations and 2 countries that are non-member observer states: the Holy See and the State of Palestine

**Not included in this total count of 195 countries are:
**

**•Taiwan - the United Nations considers it represented by the People's Republic of China
**

**•The Cook Islands and Niue, both states in free association with New Zealand which are members of several UN specialized agencies and have been recognized "full treaty-making capacity", but are neither member states nor non-member observer states.
**

**•Dependencies (or dependent territories, dependent areas, dependencies) and Areas of Special Sovereignty (autonomous territories) **

**•Other countries recognized by the United Nations as not being self-governing
**

**Answer:**

5

**Step-by-step explanation:**

K equals 3 and so 15/3 equals 5.