I bet you'll get this wrong

Probability Level 4

A man is known to speak the truth 3 out of 4 times. He throws a die and reports it is a six. The probability that it is actually a six, is

Bonus : Bayes' theorem

3 4 \dfrac{3}{4} 1 2 \dfrac{1}{2} None of these 3 8 \dfrac{3}{8} 1 4 \dfrac{1}{4} 1 8 \dfrac{1}{8}

Akhil Bansal by Akhil Bansal , 22, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Antara Chatterjee
Apr 26, 2018

only thing to take care is when he is telling a lie. suppose he rolled the die and it came 2. now his lie could be 5 options namely 1 3 4 5 and 6. so for him to choose 6 as a lie we have to multiply by a 1/5. and the rest remains the same. just apply baye to get the qnswer as 3/4

0 Helpful 0 Interesting 0 Brilliant 1 Confused

The Answer is 3/8. There is a problem in The Answer.

Aryan Soni - 1 year, 5 months ago

Log in to reply

Yeah I got 3/8 as well...

Tristan Goodman - 1 year, 4 months ago

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...