#3. the probability of spinning "rock" is 25% or 1/4 so we can use this probability to predict the number of times we would expect to get "rock" in 80 spins as follows:
25% of 80 = .25(80) = 20 So how likely is it we spin 20 'rock' out of 80 spins? At 25%, not very likely..
#4.
A. True
B. True
C. False, the theoretical probability of make make using the spinner is

or about 56%
Answer:
i dont know man use a calcuator
Step-by-step explanation:
Answer: screenshot below
Step-by-step explanation:
-1 means 1 space left from 0 on the x axis
5/2 means 5/2 spaces above 0 on the y axis
i converted 5/2 to 2 1/2 to make it easier and plotted the point by drawing a line from -1 and 2 1/2 (this is not needed for the showing of the answer)
the point is where the lines connect, aka (-1, 5/2)
Answer: -1
Step-by-step explanation: