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.

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

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