Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

maths exerciseto help with probability, Exercises of Fashion Business Basics

maths exerciseto help with probability

Typology: Exercises

2022/2023

Uploaded on 04/10/2025

unknown user
unknown user 🇬🇧

1 / 1

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1

Partial preview of the text

Download maths exerciseto help with probability and more Exercises Fashion Business Basics in PDF only on Docsity!

10a As in question 9, if no information is given about previous results, the probability of pulling out a red sock on the nth attempt is constant. However, if information is given about previous results, the probabilities will change; therefore this scenario shows no independence but constant probability. b No roll can affect another (rolls are independent) and the probability of success is constant. a Each student's result is independent of the other students’ results, but clearly the probabilities vary, since the probability of success p will variously equal 0,3 orl, depending on the student's name. 11Let X be the number of times out of the ten X-B (10, 05) P(X >6)=1-P(X <5)=0377 (3 s.f.) 1s that the coin shows ‘heads’. 12Let X be the number of correct guesses out of 20. X-B (20, 0.2) P(X <5) = 0.630 (3 sf.) 13X36») Pox ~s)~ (8) #09? soph? P(x=6)= (8) °0 p= 260° —p? P(X=5)=P(X=6)+2(1—p)=p 2 2=Sps0p—5