## Prbability

Question 1 |

Suppose there are two coins. The first coin gives heads with probability 5/8 when tossed, while the second coin gives heads with probability 1/4. One of the two coins is picked up at random with equal probability and tossed. What is the probability of obtaining heads ?

7/8 | |

1/2 | |

7/16 | |

5/32 |

Question 1 Explanation:

Each coin has equal probability to pick i.e., 1/2.

The probability of obtaining heads

= (1/2)(5/8) + (1/2)(1/4)

= (5/16) + (1/8)

= 7/16

The probability of obtaining heads

= (1/2)(5/8) + (1/2)(1/4)

= (5/16) + (1/8)

= 7/16

There is 1 question to complete.