Event A: a customer asks for help. Event B a customer makes a purchase. We know: p(B) = 0.2 and p(A) knowing that he has asked for help is 75%. What is the probability of a customer to ask for help and make a purchase?

If we right down all we have here we get:P(A) = X P(B) = 0.2 P(AIB) = 0.75 (P(A) knowing B). And we are looking for P(ANB). We have to use the formula of P(AIB) = P(ANB)/P(B). If we rearrange the equations, we get isolate P(ANB) = P(AIB) * P(B) which gives us what we a looking for.P(ANB) = 0.75 * 0.2 = 0.15

Answered by Dan A. Maths tutor

2501 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Find Dy/Dx of (x^2+4x)^3


Use chain rule and implicit differentiation to find dy/dx for y^3 = 1 + 3*x^2, then show that they are equal


If x is a real number, what are the solutions to the quadratic: 4*x^2- 4*x+1 = 0


Given that y=4x^3-(5/x^2) what is dy/dx in it's simplest form?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences