This is the "empirical rule." Approx. 68% of a data set lie within one standard deviation of the mean.
Answer:
C 12
Step-by-step explanation:
they are proportionate, so right side = 11 and bottom = 22
11-5 = 6 = other length on right
6 x 2 = length ?
lenth ? = 12
Can you put the question in English?
B because 3*4 equals 12
Then 4*3 equals 12
Here's link to the answer:
tinyurl.com/wpazsebu
