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
____ [38]
3 years ago
7

Use the "at least once" rule to find the probability of getting at least one 2 in four rolls of a single fair die.

Mathematics
1 answer:
Alexandra [31]3 years ago
8 0

Answer:

Probability of getting at least one 2 equals 0.5177

Step-by-step explanation:

The probability of at least one success is

P=1-(1-p)^{n}

where,

'p' is probability of success of 1 trail

'n' is number of events

We have probability of getting 2 is 1/6 thus 'p' = 1/6

Applying values we get

P=1-(1-\frac{1}{6})^{4}\\\\P= 0.51177

You might be interested in
A solid cylinder has a radius of 4 cm and a length of 8 cm is melted down and recast in a solid cube find the dimension of the c
zhannawk [14.2K]

Answer:

7.37108cmx7.37108cmx7.37108cm

Step-by-step explanation:

Find the volume of the cylinder then take the cube route of that. You should end up with ~7.38108cm which is the length, width, and height of your cube. The volume is 402.12386cm cubed.

5 0
3 years ago
Read 2 more answers
Seventh graders collected some gold sand on a class field trip.
satela [25.4K]

Answer:

Class 7A collected 4.8 ounces of pure gold.

Step-by-step explanation:

<u>Key skills required are: Percentages, Multiplication</u>

<u />

  1. We only need the information about Class 7A. They collected 40 oz that contains 12% gold.
  2. In other words, this means that 12% of that 40 oz gold sand is pure gold.

Here we have to do 12% x 40 to find the number of oz of pure gold. We first have to convert 12% into a decimal. Divide it by a 100 (or move the decimal point 2 places to the left) and you will get 0.12.

<em>Do 0.12 x 40 and you will get 4.8</em>

Therefore, there are 4.8 oz of pure gold in Class 7A's gold sand

3 0
3 years ago
PLEASE HELP NOW<br> what is 9 - 4x^3 + 2x^2 + 8x^3 + 1 + 6x^2 simplified??
gulaghasi [49]
Don’t click the links. Don’t trust it
7 0
2 years ago
Read 2 more answers
A citrus grower anticipates a profit of $100,000 this year if the nightly temperatures remain mild. Unfortunately, the weather f
Alchen [17]

Answer:

The grower should spend the $5,000, thereby reducing the profit to $95,000.

But, this is based on a 20% probability of freezing temperature during the next week.

Step-by-step explanation:

A) If freezing weather happens with a 20% chance, the profit will be reduced to $60,000.

With this probability, the probable loss will be 20% X $40,000 = $8,000.

B) If the grower can protect the fruit against freezing weather at a cost of $5,000, then she should go ahead.  Doing this, the profit will be reduced to $95,000 because of the cost.

However, it is worthy to note that freezing weather happens at 20% chance.  This implies that the freezing weather might not happen, 80% chance.  But, prudence still demands that necessary precautions are taken, and this includes protecting the crop at a cost of $5,000.

4 0
3 years ago
The system of equations below represents the hangers: 2x + 2y = 20, 3x = 2y. Which of the following points is a solution to this
Aleonysh [2.5K]

Answer:

5lb

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Mandy shaded the fraction strip below to represent a fraction Shade the fraction strip below so that it represents a fraction th
    15·1 answer
  • You are baking cookies. You have 7 1/4 cups of flour. You use 2 3/4 cups of flour. How much flour do you have left?
    9·2 answers
  • Solve 3x2 − x = 10
    5·1 answer
  • What do e and f equal?
    15·1 answer
  • A cone with volume 2880 m³ is dilated by a scale factor of 1/4. What is the volume of the resulting cone?
    12·2 answers
  • If the simple interest rate is 5%p.a. , how long does it take for the amount to become twice the principal
    12·1 answer
  • Standard form of (3x100)+(8x1)+(4x.1)+(3x.001) and word form please
    8·1 answer
  • Please answer quickly!!!
    9·1 answer
  • Solve simultaneous equation by substitution method<br> y-4x=6<br> 2y-3x=4
    11·1 answer
  • What 4 number add up to 47​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!