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Chapter 13: Q. 4. (page 868)

How many are in A ?

Short Answer

Expert verified

Our answer is $29 .$

Step by step solution

01

Step 1. Given information.

The diagram is given-

02

Step 2. Count the numbers in A.

We can write the set A as $n (A)$ .

We count and add all the numbers that are in the circle of A.

Thus the numbers are $20 + 2 + 6 + 1 = 29 .$

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Most popular questions from this chapter

If A and B are finite sets, the Counting Formula states that $n (A \cup B) =$ ______.

Through observation, it has been determined that the probability for a given number of people waiting in line at the “5 items or less” checkout register of a supermarket is as follows:

Find the probability of:

(a) At most 2 people in line

(b) At least 2 people in line

(c) At least 1 person in line

A golf ball is selected at random from a container. If the container has 9 white balls, 8 green balls, and 3 orange balls, find the probability of each event.

The golf ball is white or orange.

In a probability model, which of the following numbers could be the probability of an outcome?

$1.5, \frac{1}{2}, \frac{3}{4}, \frac{2}{3}, 0, - \frac{1}{4}$

List all the combinations of 5 objects $a, b, c, d,$ and $e$ taken 2 at a time. What is $C (5, 2)$ ?

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