English

In a single throw of a dice, find the probability of getting a number greater than 4. - Mathematics

Advertisements
Advertisements

Question

In a single throw of a dice, find the probability of getting a number greater than 4.

Sum

Solution

Sample space = {1, 2, 3, 4, 5, 6} 

n(s) = 6 

E = event of getting a number greater than 4 = {5, 6} 

n(E) = 2 

Probability of a number greater than 4 = `(n(E))/(n(s)) = 2/6 = 1/3`

shaalaa.com
  Is there an error in this question or solution?
Chapter 25: Probability - Exercise 25 (A) [Page 386]

APPEARS IN

Selina Mathematics [English] Class 10 ICSE
Chapter 25 Probability
Exercise 25 (A) | Q 3.1 | Page 386

RELATED QUESTIONS

A die is thrown. If A is the event that the number on upper face is less than 5, then write sample space and event A in set notation.


‘A coin is tossed’. Write the sample space ‘S’.


In a single throw of a dice, find the probability of getting a number less than 8.


Write sample space ‘S’ and number of sample point n(S) for the following experiment. Also write events A, B, C in the set form and write n(A), n(B), n(C).

Two digit numbers are formed using digits 0, 1, 2, 3, 4, 5 without repetition of the digits.
Condition for event A : The number formed is even
Condition for event B : The number formed is divisible by 3.
Condition for event C : The number formed is greater than 50.


If two dice are rolled simultaneously, find the probability of the following event.
The sum of the digits on the upper faces is at least 10.


There are 15 tickets in a box, each bearing one of the numbers from 1 to 15. One ticket is drawn at random from the box. Find the probability of event that the ticket drawn - shows a number which is a multiple of 5.


Write the sample space if two coins are tossed.


There are 9 tickets in a box, each bearing one of the numbers from 1 to 9. 
One ticket is drawn at random from the box.  
Event A: Ticket shows an even number. 
Complete the following activity from the given information: 

Activity:

S = {__________}

n(S) = ____________

A = {________}

n(A) = ___________


Write a sample space when a die is thrown


Two coins are tossed simultaneously. Write the sample space (S) and expected sample points in the given events by completing the activity.

  1. Event A: to get at least one head.
  2. Event B: to get no head.

Activity: Let ‘S’ be the sample space, when two coins are tossed simultaneously.

∴ S = `{square, HT, TH, square}`

i. Event A: to get at least one head.

∴ A = `{HH, square, TH}`

ii. Event B: to get no head.

∴ B = `{square}`.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×