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3 years ago

Suppose odd numbers 1, 3, 5 with probability C and on each of the even numbers with probability 2C.

Mathematics

1 answer:

posledela3 years ago

7 0

Answer:

Step-by-step explanation:

a) Odd numbers if n then even numbers also n

Total prob = 1 gives 3c=1

c=1/3

b) X=1, if even and

0, if odd

Y =1, if x >3 and

=0 otherwise

xy can take values as 0 or 1

xy =1 if x even and y is greater than 3, or favorable outcomes are

4, 6.

xy= 1 if die shows 4 or 6

=0 if otherwise

Prob (xy) = 1/3, for xy =1 and

= 2/3 for xy =0

This is binomial since each trial is independent.

If 12 tosses are made then if we have binomial proba

with n =12 and p = 1/3 for success

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PLEASE HELP ASAP!! Thank you!

Zielflug [23.3K]

Answer: C

Reasoning: there are 3 continuous blocks that are added to a changing number or n, in other words it can be represented as n + 3

3 0

3 years ago

Read 2 more answers

A line passes through the point (-2, 7) and has a slope of -5.

trapecia [35]

Answer:

a= -1

Step-by-step explanation:

My opinion:

the slope m = (y2 - y1) / (x2 - x1)

slope m is -5

y2 is 7

y1 is 2

x2 is -2

x1 is a

so the equation will be

-5 = (7 - 2) / (-2 -a )

10 + 5a = 5

5a = -5

a = -1

Then you can plug the value a = -1 into the equation of the slope m to double check it.

5 0

3 years ago

Write an equation about money. You started with $9. You spent some of it. Now you have $5.

KIM [24]

Answer:

9-4=5

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Find tanθ if sinθ=−25√5 is in the third quadrant.

irinina [24]

Using a trigonometric identity, it is found that the tangent of the angle is of:

$\tan{\theta} = \frac{2}{11}$

<h3>How to find the sine of an angle given the cosine, or vice versa?</h3>

The sine and the cosine of the angle are related according to the following identity:

$\sin^2{\theta} + \cos^2{\theta} = 1$

For this problem, the sine is given by:

$\sin{\theta} = -\frac{2}{5\sqrt{5}}$

Hence the cosine is found as follows:

$\left(-\frac{2}{5\sqrt{5}}\right)^2 + \cos^2{\theta} = 1$

$\frac{4}{125} + \cos^2{\theta} = 1$

$\cos^2{\theta} = \frac{121}{125}$

$\cos{\theta} = \pm \sqrt{\frac{121}{125}}$

On the third quadrant the cosine is negative, hence:

$\cos{\theta} = -\frac{11}{5\sqrt{5}}$

<h3>What is the tangent of an angle?</h3>

The tangent of an angle is given by the sine divided by the cosine, hence:

$\tan{\theta} = \frac{-\frac{2}{5\sqrt{5}}}{-\frac{11}{5\sqrt{5}}} = \frac{2}{11}$

More can be learned about trigonometric identities at brainly.com/question/26676095

#SPJ1

4 0

2 years ago

Angle A and Angle B are complimentary angles. Angle A measures 5x – 10, and Angle B measures 3x + 20. Find the measure of Angle

siniylev [52]

Answer:

$10 = x$

$40° = Measure\:of\:Angle\:A$

$50° = Measure\:of\:Angle\:B$

Step-by-step explanation:

Complementary Angles sum up to 90°, so set the two expressions equal to 90°:

90° = [3x + 20]° + [5x - 10]°

90° = [10 + 8x]°

-10° - 10°

___________

80° = [8x]°

__ __

8° 8°

$10° = x$ [Plug this back into both expressions to get m∠B at 50° and the m∠A at 40°.]

* $20° + [3[10]]° = m∠B → 20° + 30° = 50° \\ \\ 50° = m∠B$

I am joyous to assist you anytime.

7 0

3 years ago