Given that the manager wants to know the type of vegetarian dishes that the people prefer, the sample that is going to provide him with the most accurate data is:

a random group of 40 people on the street

The reason for this is because this sample has the most number and the people that are used for the sampling were chosen randomly.

A random sampling is very good because it provides an opportunity for every member of a population to be selected.

Read more on random sampling here:

brainly.com/question/24466382

6 0

2 years ago

Line segment ab is dilated to create line segment a'b' using point q as the center of dilation. What is the scale factor? 1 1. 2

Softa [21]

Dilation involves changing the size of a line segment

The scale factor is 2

From the question (see attachment), we have the following side lengths

$AQ = 1.25$

$A'Q' = 1.25 + 1.25$

$A'Q' = 2.5$

So, the scale factor (k) from AB to A'B' is calculated using the following scale factor formula

$k = \frac{A'Q'}{AQ}$

This gives

$k = \frac{2.5}{1.25}$

Divide 2.5 by 1.25

$k = 2$

Hence, the scale factor is 2