A bag contains beads, 60% of which are green. A student claims that the probability of getting two green beads if the beads aren't replaced is 1/3 as 6/10 * 5/9 is 1/3. Is the student right?

They have multiplied the fractions correctly but they are still incorrect. The student has assumed that a bag with 60% green beads contains 10 beads. If the bag had 100 beads and 60 were green, 60% of the beads would still be green but the probability of both being green is no longer 1/3, therefore the student is wrong.

AK
Answered by Adithya K. Maths tutor

3133 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A right angled triangle has sides of length 3 and length 4, what is the length of the hypotenuse?


Solve (x/4)-(2x/x+2) = 1. Give your solutions to 2 decimal places. You must show your working.


How do you factorise quadratic equations by completing the square?


What is the equation of the tangent of the circle x^2+y^2=25 at the point (3,4)


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