Layali18idn
Answered

IDNLearn.com is designed to help you find reliable answers quickly and easily. Our experts provide timely, comprehensive responses to ensure you have the information you need.

Please somebody help me with this. I asked previously but nobody gave me an answer.

Also please show working out if you’re able to:

A spinner is divided into 18 equal sections. Answer the following:

How many sections need to be shaded blue so that P(blue) = 1/3?

How many sections need to be shaded yellow so that P(yellow) = 1/2?

Sagot :

Mbarry68idn

Answer:

p(blue)=6 p(yellow)=9

6/18 6÷6=1

18÷6=3

1/3

9÷9=1

18÷9=2

1/2

Sqdancefanidn

Answer:

  • 6 blue sections
  • 9 yellow sections

Step-by-step explanation:

The idea with a spinner is that the probability of landing on one of n equal sections is 1/n. If there are 18 equal sections, the probability of landing on one of them is 1/18.

All of the sections are mutually exclusive: it is not possible to land on more than one section. That means the probability of landing on either of two sections is 2/18, any of three sections is 3/18, and so on. If you want the probability of landing on blue to be 1/3 = 6/18, then 6 of the 18 sections must be colored blue.

Similarly, if you want the probability of landing on yellow to be 1/2, then (1/2)×(18) = 9 of the sections must be colored yellow.

Your participation means a lot to us. Keep sharing information and solutions. This community grows thanks to the amazing contributions from members like you. Thank you for choosing IDNLearn.com. We’re dedicated to providing clear answers, so visit us again for more solutions.