Answer:
6.7
Step-by-step explanation:
The given data set is
2, 6, 15, 9, 11, 22, 1, 4, 8, 19
We need to find the standard devision of the data.
Formula for mean:
Fomula for standard deviation:
Therefore, the standard deviation is 6.7.
Answer:each block is 2.13 inches tall
Step-by-step explanation:
Step 1
height of tower = 64 inches
number of blocks = 30 blocks
To get how tall each block is, we must divide the total height by number of blocks used .
Step 2
height of each block = total height / number of blocks used
= 64 inches / 30 = 2.123 inches
Therefore, each block is 2.13 inches tall .
Complete data:
f(x,y) x Y
0.2 50 80
0.3 30 50
0.5 40 60
Answer:
Expected values for x and Y
E(x) = 39, E(Y) = 61
Variance for x and Y
E(x^2) = 1570
E(Y^2) =3830
Step-by-step explanation:
The detailed explanations are contained in the file attached
No, because Kiera is doing her work quicker than someone else could.