Question

85% of all teachers work in the summer. If you sample 6 random teachers, what is the probability they all work over the summer?

Answer 1

Answer:

$\frac{5}{6}$

Step-by-step explanation:

Given parameters

Percentage of all teachers the works in summer  = 85%

Number of teachers sampled  = 6 teachers

Unknown:

The probability that they all work in summer  = ?

Solution:

Now, to solve this problem, let us find the number of teachers that works in summer from the given size;

    Number of teachers = 85% x 6  = 5.1;

  Since it is not possible to have 5.1 people, the number of teachers will be 5

The probability  = $\frac{5}{6}$