Answer:
0.6 is the required probability.
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 250
Probability of accessing internet at work = 37%
Probability of accessing internet at home = 44%
Probability of accessing internet at work and home = 21%
We have to evaluate the probability that a person in this sample accesses the internet at home or at work.
Thus, 0.6 is the probability that a person in this sample accesses the internet at home or at work
Given:
A circle with radius 7 units and chord CD = 7 units.
To find:
The measure of arc CD.
Solution:
Let O be the center of the circle.
In triangle OCD,
(Given)
(Radii of same circle)
(Given)
Since all sides are equal, therefore, the triangle OCD is an equilateral triangle.
Measure of each angle of an equilateral triangle is 60 degrees. So,
The measure of central angle is equal to the measure of corresponding arc.
Therefore, the measure of arc CD is 60 degrees.
Hope this will help you
