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tossing a coin - Probability - Aptitude MCQ with Explanations

Tossing a Coins

  • The coin toss probability formula.
  • when you toss one coin, there are only two possibilities – a head (H) or a tail (L).
  • This is because the possibility of obtaining a Head in a coin toss is as likely as obtaining a tail, that is, 50%.
  • However, what if you want to toss 2 coins simultaneously? Or say 3, 4 or 5 coins

tossing a coin

                       
  coin toss pdf Download

                              Download PDF Tossing a coin 

 Coin 1

  { H, T } = 2

Coin 2

HH, HT, TH, TT } = 4

Coin 3

   { HHH, TTT, HHT, TTH, HTH, THT, THH, HTT } =8

Coin 4

      { HHHH, TTTT, HHHT, TTHH, HHTH, TTHT, THHH, HTTT, HHTT, TTHH, HTTH, THHT, TTHH, HHTT } = 16


Questions And Answers


1.     In a simultaneous toss of  2 coins then find the probability of 2 tails?

                                                         A.)1/2    B.)1/3    C.)2/3    D.)1/4

2.     In a simultaneous toss of  2 coins then find the probability of exactly 1 tail?

                                                  A.)1/2    B.)2/3    C.)2/4    D.)1/8

3.     In a simultaneous toss of  2 coins then find the probability of no tail?

                                                  A.)6/2    B.)1/8    C.)2/4    D.)1/4

4.     3 coins are tossed. find the probability of all heads?

                                                  A.)1/2    B.)1/8   C.)2/3    D.)1/4

5.     3 coins are tossed. find the probability of exactly 2 heads?

                                                   A.)1/2    B.)1/8    C.)3/8    D.)2/4

6.     3 coins are tossed. find the probability of at least 2 heads?

                                                   A.)1/2    B.)4/6    C.)2/3    D.)6/4

7.     3 coins are tossed. find the probability of no heads?

                                                   A.)1/4    B.)1/8    C.)2/8    D.)1/3

8.     3 coins are tossed. find the probability of at least 1 head and 1 tail?

                                                   A.)3/4    B.)1/2    C.)1/3    D.)2/4

9.     4 coins are tossed once. find the probability of exactly 3 tails?

                                                   A.)1/6    B.)4/8    C.)1/3    D.)1/4        

10.   4 coins are tossed once. find the probability of at least 1 tail?

                                                   A.)12/16    B.)14/16    C.)15/16    D.)16/16

11.   In a simultaneous throw of two coins, the probability of getting at least one head is?

                                             A.)1/2    B.)1/3    C.)2/3    D.)3/4

12.   Three unbiased coins are tossed. What is the Probability of getting at least 2 heads?

                                               A.)1/4    B.)1/2   C.)1/3    D.)1/8

13.   Three unbiased coins are tossed. What is the Probability of getting at most heads?

                                                   A.)3/4    B.)1/4    C.)3/8    D.)7/8

 

 

 


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