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
Elina [12.6K]
3 years ago
13

Q. The probability that a student passes a statistics test is 2/3 and the

Mathematics
1 answer:
kenny6666 [7]3 years ago
5 0

Answer:

4/9 or 44.44%

Step-by-step explanation:

We have the following probabilities:

Probability of winning the statistical test = P (s) = 2/3

Probability of winning the mathematics and statistics test = P (s n m) = 14/45

Probability of winning at least one test = P (s u m) = 4/5

We have that, the probability of winning the mathematics test P (m) can be found in the following way:

P (s n m) = P (s) + P (m) - P (s u m)

replacing we have:

14/45 = 2/3 + P (m) - 4/5

P (m) = 14/45 - 2/3 + 4/5

p (m) = 4/9 = 0.444

Which is the same as there is a 44.44% probability that I will win the math test

You might be interested in
Jessica, Chau, and Kareem sent a total of 84 text messages during the weekend. Kareem sent 4 times as many messages as Chau. Jes
swat32

Answer:

Number of messages sent by Chau = 15

Number of messages sent by Kareem = 4 * 15 = 60

Number of messages sent by Jessica = 15 - 6 = 9

Step-by-step explanation:

Let number of messages sent by Chau = c

Number of messages sent by Kareem = 4 times as Chau

                                                                = 4 * c = 4c

Number of messages sent by Jessica = 6 fewer messages than Chau

                                                               = c - 6

Total messages = 84

<u>c + 4c + c</u> - 6 = 84                {Combine like terms}

<u>6c</u> - 6 = 84         {Add 6 to both sides}

6c  = 84 + 6

6c = 90   {Divide both sides by 6}

c = 90/6

c = 15

Number of messages sent by Chau = 15

Number of messages sent by Kareem = 4 * 15 = 60

Number of messages sent by Jessica = 15 - 6 = 9

3 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST
-BARSIC- [3]

Answer:

it is C

Step-by-step explanation:

because i had this problem and i got it right

4 0
3 years ago
Read 2 more answers
What is the cube root of 999 rounded to the nearest tenth?
elixir [45]

Answer:

9.99666555494 (rounded to 10)

Step-by-step explanation:

Hope it helps!!!

6 0
3 years ago
Read 2 more answers
A group of 72 people travel to the beach for a clean-up day. Some of the people bring their own supplies (such as gloves, water,
Doss [256]

Answer:

72-b=p

Step-by-step explanation:

You start with 72, then take away the people bringing their own supplies (b), and that equals the number of people that will have supplies provided for them (p).

72-b=p

3 0
3 years ago
This handy application of LCMs is used by astronomers. All the planets in our solar system revolve around the sun. The planets o
TiliK225 [7]

To find number of years we take LCM of planets revolution times.

Planet's revolution times are given in the chart

Solar System Planet Revolution Time

Earth 1 year

Mars 2 years

Jupiter 12 years

Saturn 30 years

Uranus 84 years

Neptune 165 years

We take LCM of 1,2,12,30,84 and 165

Prime factorization of 2 = 2

Prime factorization of 12 = 2^2 * 3

Prime factorization of 30 = 2 * 3* 5

Prime factorization of 84 = 2^2 * 3 * 7

Prime factorization of 165 = 3*5*11

We take set of prime factors that has highest exponent,

So LCM = 2^2 * 3 * 5 * 7 * 11 = 4620

Therefore it will take 4620 years.

8 0
3 years ago
Other questions:
  • a large drink costs 50 cents more than a small drink. write an expression for the total cost of 3 small drinks and 2 large drink
    10·1 answer
  • 7) 19 = 9 + 2(x – 7)
    13·2 answers
  • One apple and three oranges cost $5.10 and another 5 oranges and one Apple cost $7.50 what is the price of one apple and one ora
    13·1 answer
  • Help PLZZZ
    14·1 answer
  • PLZ HELP! MATH
    10·2 answers
  • Compute the permutations and combinations.<br><br> 4 P 4<br><br> 1<br> 4<br> 24
    8·1 answer
  • There are 26 third graders and 32 fourth graders going on a field trip. Each van can carry 10 students. How many cans are needed
    6·1 answer
  • MEANT FOR ENGLISH
    11·1 answer
  • HELP PLEASE THANK U BAES
    11·1 answer
  • PLEASE HELP ASAP THANK YOU!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!