Answer:
56
Step-by-step explanation:
Let N be the total number of spins.
Probability of A on Red and B on Red = 0.5 x 0 .6 = 0.3 (top branch of tree)
Therefore with N spins, the estimated number of times spinner A and spinner B land on red is 0.3N and we are given this as 84
So 0.3N = 84
N = 84/0/3 = 280
The probability of spinner A on blue and spinner B on blue is 0.5 x 0.4 = 0.2 (lowest branch of tree)
For 280 spins, the estimated number of times that both spinners land on blue is given by 0.2 x 280 = 56
Phillip spent $8.14 in total. Here is how:
2.5 lbs (Monday) + 1.2 lbs (Tuesday) = 3.7 lbs
3.7 lbs • $2.20/per lbs = $8.14
Answer:
9
Step-by-step explanation:
just do 16 - 5 its exactly the same
Step 1
find the values of x and y
x y
1 3
2 3
3 4
2 5
3 6
4 7
5 8
5 9
6 11
6 12
7 12
7 14
8 14
using a excel tool
see the attached table
the correlation coefficient r is equal to 0.97
the answer is the most appropriate correlation coefficient for the scatter plot is 0.95