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4 years ago

8

. How do these two processes, finding the expected value of a discrete random variable and finding the dot product

1 answer:

kozerog [31]4 years ago

6 0

Answer:

We can conclude that on this case we have identical processes but excersise 17 use another way to present the probability distribution and as we can see the expected value can be viewed as a dot product of two vectors with one vector containing the outcomes and the other the probabilities for each possible outcome.

Step-by-step explanation:

Assuming this previous info:

Exercise 17. Suppose that we convert the table on the previous page displaying the discrete distribution for the number of heads occurring when two coins are flipped to two vectors.

Let vector

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Find the angle sum of the irregular polygon using the formula S= 180(n-2).

lesya [120]

Answer:

720°

Step-by-step explanation:

The "n" in the formula refers to the number of sides. The polygon shown has 6 sides, so the sum of interior angles is ...

S = 180°(6 -2) = 720°

7 0

4 years ago

Find the number of positive integers less than 100,000 whose digits are among 1, 2, 3, and 4. Hint consider the

Verdich [7]

Answer:

<em>1364</em> is the number of possibilities for positive integers less than 1,00,000.

Step-by-step explanation:

<em>1. 5 digit numbers:</em>

We have 5 places here, and each place can have 4 options because repetition is allowed.

So, total number of possibilities for 5 digit numbers:

$4 \times 4 \times 4 \times 4 \times 4\\ \Rightarrow 1024$

<em>2. 4 digit numbers:</em>

We have 4 places here, and each place can have 4 options because repetition is allowed.

So, total number of possibilities for 4 digit numbers:

$4 \times 4 \times 4 \times 4 \\ \Rightarrow 256$

<em>3. 3 digit numbers:</em>

We have 3 places here, and each place can have 4 options because repetition is allowed.

So, total number of possibilities for 3 digit numbers:

$4 \times 4 \times 4 \\ \Rightarrow 64$

<em>4. 2 digit numbers:</em>

We have <em>2</em> places here, and each place can have 4 options because repetition is allowed.

So, total number of possibilities for 2 digit numbers:

$4 \times 4 \\ \Rightarrow 16$

<em>5. 1 digit numbers:</em>

We have 1 place here, and each place can have 4 options because repetition is allowed.

So, total number of possibilities for 1 digit numbers:

$4$

We can add all the above possibilities to find the total.

So, number of positive integers less than 100,000 whose digits are among 1, 2, 3, and 4 = 1024 + 256 + 64 + 16 + 4 = <em>1364</em>

3 0

3 years ago

What is 4 1/3 * 2 1/7 as a mixed number in simplest form?

Ronch [10]

Answer:

9 2/7

Step-by-step explanation:

4 1/3=13/3

2 1/7=15/7

13/3*15/7= 195/21

=9 6/21

=9 2/7

4 0

4 years ago

Read 2 more answers

Y=10x+16 looks like what on a graph

lakkis [162]

Here is my graph. Hope it helps

7 0

3 years ago

Simplify. -7 square root

OverLord2011 [107]

The square root of -1 is i. So you can simplify it to 7(sqrt)-1, which becomes 7i.

8 0

3 years ago