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
Sati [7]
3 years ago
9

Two fair dice are rolled 4 times and the sum of the numbers that come up are recorded. Find the probability of these events. A)

the sun is 5 on each of the four rolls. B) the sun is 5 exactly three times in the four rolls.
Mathematics
1 answer:
Elza [17]3 years ago
8 0

Answer:

See below in bold.

Step-by-step explanation:

A.  On one roll the possible ways to get a sum of 5 is (2,3, ) and (4, 1).

There are 36 possible outcomes from the one roll of the 2 dice.

So the probability of getting  a sum of 5 on one roll =  2/36 = 1/18.

So the probability of 5 on 4 rolls = (1/18)^4

= 1/104976.

B.  

The probability of the first 3 rolls being a 5 and the last one being not 5

= (1/18)^3 * (17/18)

= 17/104976

There are 4 ways to  pick 3 out of 4 so the required probability

=  4 * 17/104976

= 68/104976.

You might be interested in
I need help with 43-45
Lena [83]

43. 300 customers per day is the median of the distribution, so half of the measurements of customers per day are 300 or less. We could say, about half the time.

44. The quaritles of the distribution for Store A are evenly spaced, so we can say the distribution is symmetrical and nearly uniform.

For Store B, the longer distances between quartiles on the right and the long right-side "whisker" mean the distribution is skewed to the right.

45. The average and median are likely very close to the same for Store A, at about 300 customers per day. The average for Store B is likely slightly above its median of 350, so is more than 350 customers per day. The worst days for Store B are not as good as the best days for Store A, but, on average, Store B has more customers.

8 0
4 years ago
Which image shows the correct position -2 1/2on the number line ​
Nat2105 [25]

Answer:

The first one

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which is true about the domains and ranges of the functions f(x) = 1/8sqrt(x) and g(x) = 8sqrt(x)?
MatroZZZ [7]

Answer:

They have the same domain and range.

Step-by-step explanation:

Since both are derived from the parent graph f(x) = √x, we know that the domain of the parent graph is [0, ∞) and the range is also [0, ∞). Since both graphs are only being modified by vertical stretch/shrink, they still have the same domain and range as the parent graph. Therefore, both graphs have the same domain and range.

4 0
3 years ago
Read 2 more answers
amanda ran 4 laps around the school track. Clifford ran half as many laps as brian ran. Together the 3 friends ran 13 laps. How
Mariulka [41]

Answer: 6 laps

Step-by-step explanation:

13  - 4= 9 left  6 and half would be three

7 0
3 years ago
What is the x and y equal in y=8x+1 and y=3x+26
Alla [95]

Answer:

x=5, y=41

Step-by-step explanation:

Because both equations are equal to Y, you can set them equal to each other like this:

8x+1=3x+26

From here, solve for x:

1. 5x+1=26

2. 5x=25

3. x=5

Once you have x, plug it back in to one of the original equations:

y=8(5)+1

y=41 and then you have your answer

If this answer was particularly helpful, please feel free to give it brainliest!! I would greatly appreciate it.

3 0
3 years ago
Read 2 more answers
Other questions:
  • 297,499 rounded to the nearest hundred
    14·1 answer
  • Help me asap i need to finish this by 9:00
    11·2 answers
  • If Jake earns $8 per hour how much did he earn each day​
    10·1 answer
  • Solve the proportion?
    6·1 answer
  • What percentage of the world uses calculators
    8·2 answers
  • A class of 25 students shares a class set of 60 markers.On a day with 10 students absent, which statement is true. A) For every
    12·1 answer
  • 9.2 Find the
    11·1 answer
  • Amy drove to her mother’s house, which is 204 miles away. If it took her 3 hours, what was her average speed?
    13·1 answer
  • Can y’all please help me out
    10·1 answer
  • Factorise:<br> 27x^3 - 1/216 -9/2x^2 +1/4x
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!