1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
cricket20 [7]
3 years ago
10

In which example are the events independent? A) Ariel has a standard deck of 52 cards. She draws one card from the deck and then

replaces it. She then draws a second card from the deck. What is the probability that both cards are clubs? B) Alisa has a bag of 10 red and 6 green marbles. She takes one marble out of the bag and does not replace it. She then takes a second marble out of the bag. What is the probability that both marbles are green? C) In a bag of apples there are 4 green apples and 2 red apples. Bethany takes a green apple out of the bag and does not replace it. She then takes another apple out of the bag. What is the probability that the second apple is red? Eliminate D) In Mrs. Brown's Geometry class there are 15 boys and 10 girls. The students are presenting projects to the class. If Mrs. Brown selects students at random for presentations, what is the probability that the first 2 students chosen are girls?
Mathematics
2 answers:
lana66690 [7]3 years ago
5 0
Example A is independent
siniylev [52]3 years ago
5 0
<h2>Answer:</h2>

The example in which the events are independent is:

Example A)

<h2>Step-by-step explanation:</h2>

<em>Two events are said to be independent if happening of one event do not affect the occurrence of the other event.</em>

A)

Since in example A a card is drawn and then placed back into the bag and then a second card is drawn.

So the occurrence of the first  event do not affect the second.

Since in both the events each card has a equal probability of being drawn.

Hence,  the probability that both cards are clubs will be:

\dfrac{13}{52}\times \dfrac{13}{52}\\\\\\=\dfrac{1}{16}

( Since there are 13 clubs out of total 52 cards in a deck)

whereas in the other three examples the occurrence of the first event will affect the occurrence of the second event, since there is no replacement.

You might be interested in
Does anyone know the answer to this ??
xenn [34]

Answer:

The answer is C. 14.5 miles

4 0
3 years ago
I NEED HELP PLEASE, THANKS! :) Heather invests $4,900 in an account with a 3.5% interest rate, making no other deposits or withd
Alex

Answer:    $5,828.28

<u>Step-by-step explanation:</u>

Use the Compound Interest formula:     A=P(1+\frac{r}{n})^{nt}       where

  • A is the accrued amount (balance)
  • P is the principal (initial amount invested)
  • r is the interest rate (in decimal form)
  • n is the number of times compounded each year
  • t is the time of the investment (in years)

Given: P = 4,900

           r = 3.5% (0.035)

           n = 2

           t = 5

A=4,900\bigg(1+\dfrac{0.035}{2}\bigg)^{2(5)}\\\\\\.\qquad = 4900(1.0175)^{10}\\\\\\.\qquad = \large\boxed{5,828.28}\\

5 0
3 years ago
Which statement is true? A matrix separates rational and irrational numbers. A matrix separates positive and negative numbers. A
Jet001 [13]
I'm pretty sure the answer is "A matrix separates rational and irrational numbers." (Note: I'm not that great with memorizing definitions, but I'm pretty sure.) Hope this helps :)
5 0
3 years ago
Mrs. Gomez is a mother to 2 boys. The number of children she has is three times the number of boys she has. Her children are pla
slava [35]
There are 6 children total, 4 of which are girls. The ratio is 2:1 girls:boys, so there will need to be twice as many pinks as there are blues. If we get 12 pinks, then there will be 6 blues. That's the biggest since that's all the pinks the florist has.
3 0
3 years ago
Simplify the expression (4x - 3)(x + 5).
Drupady [299]
(4x-3)(x+5)
= 4x^2+20x-3x-15
= 4x^2+ 17x -15.

The final answer is 4x^2+ 17x -15~
3 0
3 years ago
Other questions:
  • - (y36 y9) do anybody know the answer?
    13·1 answer
  • Write two integers with different signs that have a sum of -25.
    12·1 answer
  • a pizza shop offers 30% off the price of a large pizza every Tuesday night. If the regular price is $25, what is the discounted
    12·2 answers
  • I need help with my math
    11·1 answer
  • Can someone explain how to do this please?
    14·1 answer
  • I will give the brainliest if you help me find the diameter
    10·2 answers
  • If a bracelet cost 23.99 and it's 75% off how much would it cost
    10·2 answers
  • Price - $375<br> Discount - 20%<br> Total =
    10·1 answer
  • Solve for X<br> 130, 50 and X
    15·2 answers
  • Suppose you roll a single die 5 times. What is the probability of rolling a 3, exactly 4 times? ​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!