MATHEMATICS MIDDLE SCHOOL

A number is randomly selected from { 15, 16, 17, 18, 19, 20}.A is represented by the event that the number picked is less than or equal to 16.

What is the probability of the complement of event A?

A. 1/6
B. 1/3
C. 2/3
D. none of the above

Answers

Answer 1

Answer:

Answer:

C) 2/3

Step-by-step explanation:

Given: { 15, 16, 17, 18, 19, 20} = 6

Event A is represents the number picked is less than or equal to 16.

Favorable outcomes = { 15, 16} = 2

Probability = The number of favorable outcomes/ The total number of possible outcomes.

Here the total number of outcomes = 6 and the number of favorable outcomes = 2

The probability of getting less than or equal to 16 P(A) = 2/6

Now we have to find the probability of complement event A.

P(A') = 1 - P(A)

= 1- 2/6

= (6 - 2)/6

= 4/6

When we simplify, we get 2/3

Therefore, the probability of complement of event A, P(A') = 2/3

Answer: C) 2/3

Hope this will helpful.

Thank you.

Answer 2

Answer:

Final answer:

The probability of the complement of event A is 0, thus D. none of the above

Explanation:

The event A represents the numbers that are less than or equal to 16.

To find the probability of the complement of event A, we need to find the numbers that are greater than 16.

The set {15, 16, 17, 18, 19, 20} has 6 numbers and the set A has 9 numbers.

Therefore, the complement of event A has 6 - 9 = -3 numbers.

Since the number of elements in a set cannot be negative, the probability of the complement of event A is 0.

Therefore, the correct answer is D. none of the above.

Learn more about Probability here:

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What is the sum of -4 and -6?

Answers

on a number line,
negative means go left
positive means go right

-4 means go 4 units left of zero
-6 means another 6 units left of 0
4+6=10
that means 10 total units left or -10

If you need to know the sum you need to add. So if you are adding two negative numbers, basicaly, you are doing subtration.

4 - 6 = -2

So we just flip the negative 2 into a positive 2.

1,537 multiplied by 242

Answers

371,954 is the Answer because I put 1,537 on top and 242 on the Bottom and Multiplied it Digit by Digit.

Which of the following sets of measures for sides doesn't form a triangle?14, 18, 18
3, 3, 5
8, 8, 8
7, 9, 17

Answers

The sum of the two smallest numbers has to equal a number greater that the largest one. Or, how some people prefer it, the sum of any two numbers of the set has to be a greater number than the third one.

So, the set of sides 7,9,17 does not form a triangle.
because 7+9= 16, which is less than the greatest number, 17.

Answer:

7,9,17 is the answer!

Step-by-step explanation:

brainliest is appreciated! Thank You!

Solve the equation 4+0.3x=19

Answers

Step #1). Subtract 4 from each side of the equation.

Step #2). Divide each side by 0.3 .

At this point, be careful. The answer will jump up off the paper
into your face.

4+0.3x=19

0.3x=19-4

0.3x=15

x=15/0.3

x=50

Which statements accurately describe aspects of Russia's culture and history? Choose all answers that are correct. A. Ivan the Terrible isolated Russia from the West. B. The Kremlin is a fortress and symbol of power. C. Orthodox Christianity became the official religion. D. Russian peasants had more freedom than most European peasants. E. Ivan III was known for defeating the Byzantines and rejecting their culture.

Answers

Answer:

B. The Kremlin is a fortress and symbol of power, C. Orthodox Christianity became the official religion.

Step-by-step explanation:

Ivan the Terrible consolidated the Grand Duchy of Moscow, which gained total independence from Mongols. The Kremlin is a military and seat of the Tsar and the Russian Ortodox Christianity, which became the official religion of Russia until 1917.

The Russian peasants had less freedom than most European peasants, since rural economy was predominant and feudal institutions remained until Modern Age.

Ivan III accepted the Byzantine influence during his reign.

Well, my origin and parents are from Russia, so you could trust me PRETTY WELL! =P <-----------(Emoji)
Your ACTUAL ACCURATE answers would be A. and E.
The other answers are QUITE RIDICULOUS, and ISLAM is the majority of the religion in Russia. The PEASANTS in Russia had to suffer from poor treatment and dictatorship while OTHER COUNTRIES let their peasants eat sausage and STILL get treated more fair than Russian peasants. The KREMLIN is ACTUALLY a cathedral, and has NOTHING TO DO with being a symbol of power.
Well, these all just leave A. and E. as the ONLY ACCURATE AND CORRECT answers.
THESE ARE ALL BY MY OWN WORDS, AND I KNOW THESE FOR A FACT DUE TO MY RUSSIAN HERITAGE.
I hope I helped! =D

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