Answer:
Im pretty sure its B for the first one
Step-by-step explanation:
The most improbable simulation for this coin is the heading when a coin is tossed 20 times will be 15.
<h3>What is probability?</h3>
Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1. Its basic meaning is something is likely to happen. It is the ratio of the favorable event to the total number of events.
A coin is biased to display heads 75% of the time.
It is tossed 20 times, and the outcomes are recorded.
Then the probability of getting heads when a coin is tossed 20 times. Then we have

More about the probability link is given below.
brainly.com/question/795909
<h3>
Answer: Choice A) -10.73</h3>
Work Shown:
Plug x = 4.3 into the equation given
ŷ = 2.6 − 3.1x
ŷ = 2.6 − 3.1(4.3)
ŷ = 2.6 − 13.33
ŷ = -10.73
Note: The symbol ŷ is read as "y hat". It's used to estimate the y value when it comes to regression equations.