**Answer:**

option 3, she made a mistake in step 2. y=1/2 or .5

**Answer:**

20

**Step-by-step explanation:**

E:S

4:3

4u+3u=140

7u=140

u=20

**Answer:**

**Step-by-step explanation:**

Suppose I have a bag of n biased coins, and I sample without replacement m<n of them, and measure each coin i for their parameter pi∈[0,1], that is each coin is Bernoulli(pi). Now I would like to ask what is the most likely pm+1 on the next coin I pick. I am not sure how to answer this question aside from taking the mean of all m coins' parameter so far. That is: p^m+1=p1+…+pmm.

That would be 20 because if u do the math u would get the answer

**Answer:**

3

**Step-by-step explanation:**

Coordinate pairs are represented like this (x, y). So since 3 is in the first spot, it is the x coordinate.