Question

Level 5 Use this photo for the question below. A board game has a spinner divided into sections of equal size. Each section is labeled with a number between 1 and 5. Which number is a reasonable estimate of the number of times the spinner will land on a section labeled 5 over the course of 150 spins? Your answer This is a required question Back Next Page 6 of 8 Never submit passwords through Google Forms. This form was created inside of 0061 - Leonardo DaVinci Middle School, Report Abuse Google Forms

Answer 1

1. Here we want to know that out of 150 spins how many times it will land on 5. So to find that we need to find how likely that is the probability to land on 5.

No. of total marks = 12

No. of 5 - marks = 3

P(getting 5) = 3 / 12 = 0.25

Exp (getting 5) = P( getting 5) * 150

$\mathbf{E(5)=37.5}$

Approximating we get 38.

2. P( Friday) = No. of selected / Total customer   on Friday

= 90 /500

= 0.18

We are saying Probabiltiy of getting selected on Sat is same as Fri.

P(Sat ) = P( Fri)

No . of selected / Total customers = 0.18

No. of selected / 700= 0.18

No . of selected = 700*0.18

= $\mathbf{126}$