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
hammer [34]
3 years ago
6

A bag contains exactly three red marbles, five yellow marbles and two blue marbles. If three marbles are drawn from the bag with

out replacement, what is the probability that all three will be the same color? Express your answer as a common fraction
Mathematics
1 answer:
Studentka2010 [4]3 years ago
3 0

Answer:

  • 11/120

Step-by-step explanation:

  • Red = 3
  • Yellow = 5
  • Blue = 2

Possible options would be red or yellow as only two blue marbles.

<u>Probability of 3 red:</u>

  • 3/10*2/9*1/8 = 1/120

<u>Probability of 3 yellow:</u>

  • 5/10*4/9*3/8 = 1/12

<u>Probability of same three is:</u>

  • 1/120 + 1/12 = 11/120
You might be interested in
An auction house sells raffle tickets for $1. There are 10 prizes, each worth $10. If 100 raffle tickets are sold, what is the e
allsm [11]
1 dollar is the expected value
7 0
3 years ago
Read 2 more answers
Measurements were taken from snails of the shell weights and the widths of the opercula. Plot a graph of opercula width (y-axis)
joja [24]

Answer:

Yes,there is a significant association shell weight and the widths of the opercula

Step-by-step explanation:

Using a correlation Coefficient calculator :

Given the data above :

The Coefficient of correlation(r) obtained is :

0.7632

Obtaining the test statistic :

T = r² / √(1 - r²) / (n - 2)

T = 0.7632² / √(1 - 0.7632²) / (10 - 2)

T = 0.58247424 / 0.2284528

Test statistic = 2.550

The Pvalue from r score , N = 10

Pvalue(0.7632, 10) = 0.01022

α = 0.05

If Pvalue < α ; reject H0

Pvalue < α ; We conclude that there is a significant association shell weights and the widths of the opercula

5 0
3 years ago
Joe spent $4.36 for gasoline in driving 68 miles. How much would he spend in driving 85 miles?
monitta
He will spend $5.45 if he is driving 85 miles.
How can we figure this out mathematically?
4.36/68=0.064
That means every mile he drives he spends on average 6 cents.
Now 0.064 * 85 equals $5.45.
Please vote my answer brainliest! Thanks.
8 0
3 years ago
Find the value of the expression
cestrela7 [59]
The answer to the question is -343i
4 0
3 years ago
If the perimeter of the regular decagon shown above is 136 1/4 inches, what is the length of each side?
victus00 [196]
<h3>Answer: Choice A. 13 & 5/8 inches</h3>

Ideally you should always post the diagram to help us see the entire problem; however, the diagram is not needed in this case because we are told the figure is regular decagon. So there are 10 sides and each side is the same length. If each side is x inches long, then the perimeter is 10x inches.

10x = 136 & 1/4

10x = 136 + 1/4

10x = 136 + 0.25

10x = 136.25

x = 136.25/10

x = 13.625

x = 13 + 0.625

x = 13 + 625/1000

x = 13 + 5/8

x = 13 & 5/8

7 0
3 years ago
Other questions:
  • What is the exponential regression equation to best fit the data? Round each value in your equation to two decimal places.
    8·2 answers
  • What is the median house price?
    5·1 answer
  • 1<br> thanks for your help!
    9·1 answer
  • 2(r–2)≥8<br> jdjdhjdhjhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
    9·1 answer
  • it takes 545454 minutes for 444 people to paint 666 walls. How many minutes does it take 666 people to paint 777 walls?
    10·2 answers
  • What are all the subsets of the set? {–3, 6}
    7·1 answer
  • 7% decrease on a £6500 car.<br> he pays 12 every month
    7·1 answer
  • Can someone please be generous &amp; help I’ve been struggling all night
    12·1 answer
  • Assuming only the lengths of the sides of a triangle are given, how can you determine if the triangle has a right angle?
    8·1 answer
  • If the geometric mean of A and 10 is <img src="https://tex.z-dn.net/?f=%5Csqrt%5B6%5D%7B5%7D" id="TexFormula1" title="\sqrt[6]{5
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!