Imagine that 200 mice are sent through the maze one at a time. the researchers believed that the probability of a
mouse turning left due to the food is 0.7. how many left turns would they expect from 200 mice?

We expect 140 mice to turn left.

Step-by-step explanation:

Given : The researchers believed that the probability of a  mouse turning left due to the food is 0.7.

So , if we imagine that 200 mice are sent through the maze one at a time. .

Then , the number of mice we expect that turned left = (Probability of a  mouse turning left ) x (Total mice)

Therefore , the number of mice we expect that turned left = (0.7)x(200)

i.e. the number of mice we expect that turned left =140

Hence, We expect 140 mice to turn left.

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

i think the length is 12 and the width is 17