If a coin is tossed for a certain number of times. How many times the coin was tossed, if the probability of getting a head is 0.4 and it appeared up for 24 times?

Asked by Last Modified  

4 Answers

Learn Mathematics +1

Follow 4
Answer

Please enter your answer

Math Magacian

60.
Comments

Mathematics Tutor

Probability of an event = No. Of favourable occurrences / Total no. Of occurrences of all possible events Let 'n' be the total no. Of times the coin is tossed. Given probability of success of a head appearing = 0.4 Given the no. Of times 'head' appeared = 24 So, 0.4 = 24 / n n = 24 / 0.4 So, n = 60.
read more
Probability of an event = No. Of favourable occurrences / Total no. Of occurrences of all possible events Let 'n' be the total no. Of times the coin is tossed. Given probability of success of a head appearing = 0.4 Given the no. Of times 'head' appeared = 24 So, 0.4 = 24 / n n = 24 / 0.4 So, n = 60. read less
Comments

atics pecialise in mba / economics students of all levels

Answer of n =60, since p(h)=0.4 , and n=24= total no of head appearances, then we get equation , 0.4 n = 24 / n, solving fr n total appearances 0.4 n =24 .. eq (1) or 4n =240 or n=240/4=60 total appearances , is the required answer .. Dr K S Velmurugan Quantitative methods Teacher Pondicherry
Comments

atics pecialise in mba / economics students of all levels

Answer of n =60, since p(h)=0.4 , and n=24= total no of head appearances, then we get equation , 0.4 n = 24 / n, solving fr n total appearances 0.4 n =24 .. eq (1) or 4n =240 or n=240/4=60 total appearances , is the required answer .. Dr K S Velmurugan Quantitative methods Teacher Pondicherry
Comments

View 2 more Answers

Related Questions

How many triangles can be drawn having its angles as 45°, 64° and 72°? Give reason for your answer.
Zero triangles.. we cant draw triangle with these angles. but the given angles are 45,64.72. if we add those we get 45+64+72=181. so we cannot draw triangle.
Satish
What is the meaning of ^ in maths?
The symbol ^ is generally used to denote exponents or powers. For ex : 2^3 = 8 (which simply means that 2 is raised to the power 3 , which results in 8) More examples : 5^2 = 25. 6^2 = 36
Akash
0 0
5

Hello everyone

Which is better? : Online tuitions by brands like: Meritnation, Myschool page or Catalyze or regular tuition classes?

I would suggest offline coaching because it binds the students and gives different levels of class surrounding, which is not possible in online classes. However, for extra self-studies, one can take the help of online material.
Swetha
Solve : 141x + 103y = 217; 103x + 141y = 27
First add both equations, we'll get 244x+244y=244, Now, Divide this equation by 244, it gives x+y=1.....(a) Again, subtract equation 2 from 1, it gives 38x-38y=190, Now, divide this equation by 38,comes x-y=5.....(b) Now...
Tanvi
Solve : x + y = 18; y + z = 12; z + x = 16
Let x+y=18---(1), y+z=12---(2),z+x=16---(3) Solving (2)-(3) we get y+z-z-x=12-16 y-x=-4--(4) Solving (4)+(5) we get x+y+y-x=18-4 2y=14 y=14/2=7 Substitute y value in (1) x+7=18 x=18-7=11 Substitute x value in (3) z+11=16 z=16-11=5 x=11, y=7, z=5
Deepak
0 0
5

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Recommended Articles

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

With the current trend of the world going digital, electronic renaissance is a new movement that is welcomed by the new generation as it helps makes the lives of millions of people easier and convenient. Along with this rapidly changing movement and gaining popularity of Internet, e-Learning is a new tool that emerging...

Read full article >

Quality education does not only help children to get a successful career and life, but it also hugely contributes to society. The formal education of every child starts from school. Although there are numerous schools, parents find it challenging to choose the right one that would fit their child. It is difficult for them...

Read full article >

Looking for Class 9 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you