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.

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.