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
VladimirAG [237]
3 years ago
11

How to calculate a probability

Mathematics
1 answer:
Lelu [443]3 years ago
6 0
Probability is calculated by comparing the odds to a certain event occurring to the number of possible events.

P=\frac{possibility-of-an-event-occuring}{number-of-total-outcomes}

For example, take a six-sided dice number 1-6 on each side. The probability of rolling a 4 would be1 in 6 or 1/6. This is because of the six possible outcomes, rolling a 4 is only one of them.

P(4)=1/6

Now take the same dice. The probability of rolling an even number is 3/6. To see why, lets look at the total possible outcomes:

1
2
3
4
5
6

Of the 6 possibilities, 3 are even numbers.

P(even)=3/6 or 1/2
You might be interested in
Please help thank you!!
Dmitry [639]

Answer:

<h2>a. V = 420 cm³</h2><h2>b. V = 444 in³</h2><h2>c. V = 108 cm³</h2><h2>d. V = 324 m³</h2>

Step-by-step explanation:

We have the rectangular prisms.

The formula of a volume of a rectangular prism is:

V=lwh

l - length

w - width

h - height

==========================================

Look at the picture.

a.

Two congruent rectangular prisms 14cm × 3cm × 5cm.

V=2(14\cdot3\cdot5)=420\ cm^3

b.

One rectangular prism 15in × 4in × 6in and next 7in × 4in × 3in:

V=15\cdot4\cdot6+7\cdot4\cdot3=360+84=444\ in^3

c.

One rectangular prism 10cm × 3cm × 2cm and next 4cm × 3cm × 4cm:

V=10\cdot3\cdot2+4\cdot3\cdot4=60+48=108\ cm^3

d.

One rectangular prism 10m × 3m × 6m and next 8m × 3m × 6m:

V=10\cdot3\cdot6+8\cdot3\cdot6=180+144=324\ m^3

4 0
3 years ago
The first term of a geometric series is 3, and the sum of the first term and the second term is 15. What is the sum of the first
8_murik_8 [283]
Hello,
u_{1}=3
u_{2}=3*r

u_{1}+u_{2}=15=3(1+r)
==> 1+r=5==>r=4

3+3r+3r²+3r^3+...+3r^6=3(1+r+r²+...+r^6)=3*(r^7-1)/(r-1)=4^7-1=16383









7 0
3 years ago
Ben wants to buy a bicycle. The regular price of the bicycle is $140. The sale price of a bicycle is 25% off the regular price.
Valentin [98]

Answer:

Step-by-step explanation:

$140-25%=$115

So it would be $115

7 0
3 years ago
Pls help!!! ill give a brainliest
Leya [2.2K]

Answer:

--6+36m

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Question 4 please:<br> Witch numbers in the box are multiple of 3
umka21 [38]

Answer:

6 AND 12

Step-by-step explanation:

3 x 2 = 6

3 x 4 = 12

4 0
4 years ago
Read 2 more answers
Other questions:
  • Can you please help me
    8·1 answer
  • Last one haha ill give 20 points
    13·1 answer
  • A five-digit number has a 3 in the hundreds place, a 7 in the greatest place-value position, a 9 in the ones place , an 8 in the
    10·1 answer
  • Solve the solution: 2y=8 5y=2x-4
    12·1 answer
  • Find angle x on the given figure
    7·1 answer
  • Francisco has a savings account balance of $2,033.88. The interest rate on the account is 2.9% compounded monthly. If he opened
    10·1 answer
  • Lin and Diego both ran for 10 seconds, each at their own constant speed. Lin ran 40 meters and Diego ran 55 meters.
    6·2 answers
  • Does anyone know the answer for the third one?
    6·1 answer
  • Find the 11th term of the arithmetic sequence -2x,-8,-9x,-11,-16x,-14
    15·1 answer
  • HELP!! Plz Math
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!