#### Question

Ramesh chooses a date at random in january for a party.

January |
|||||

Mon |
6 | 13 | 20 | 27 | |

Tue |
7 | 14 | 21 | 28 | |

Wed |
1 | 8 | 15 | 22 | 29 |

Thurs |
2 | 9 | 16 | 23 | 30 |

Fri |
3 | 10 | 17 | 24 | 31 |

sat |
4 | 11 | 18 | 25 | |

Sun |
5 | 12 | 19 | 26 |

Find the probability that the choose:

(1) a Wednesday

(2) a friday

(3) a tuesday or a saturday.

#### Solution

Number of possible outcomes= number of day in the month=31

n(s)=31

(1) E= event of selection of a Tuesday or a saturday ={1,8,15,22,29}

n(E)=5

Probability of selection of a wednesday= `P(s)=(n(E))/(n(s))=5/31`

E=event of selection of a friday ={3,10,17,24,31}

n(E)=5

probability of selection of a friday =`P(s)=(n(E))/(n(s))=5/31 `

E=event of seletionn of a tuesday or a saturday ={4,7,11,14,18,21,25,28}

n(E)=8

Probability of selection of a Tuesday or a saturday `=P(s)=(n(E))/(n(S))=8/31`

Is there an error in this question or solution?

Solution Ramesh Chooses a Date at Random in January for a Party. Concept: Random Experiments.