Answer:
3/4
Step-by-step explanation:
The mean of a data set is synonymous with the average. To find the mean, add up all the values in the data set and then divide by the number of elements.
From the table, there is 12 values. Thus, add up all the 12 values and then divide by 12:

Simplify:

Reduce:

Therefore, the mean of the data set is 3/4.
For the data set, this means that the average person guesses the temperature too high by about 3/4°F.
(Note: the symbol of x with a bar over it denotes the mean of a set)
Answer: A. 12.5
<u>Step-by-step explanation:</u>

Answer: it is not a function if the x repeats
Step-by-step explanation: My teacher always says THE X DOES NOT REPEAT that is the easiest way to remember it
Answer:
4.
Step-by-step explanation:
if the probability it win is 3/5 then 5/5 - 3/5 equals 2/5
which you multiply with 1/2
hope this helps