Answer:
1 option or last option are the best choices sorry if I'm wrong.
Answer:
Step-by-step explanation:
Angle pair 1 and 8
and
Angle pair 2 and 7
76 is the mean for this problem
Answer:

Step-by-step explanation:
Using central Limit Theorem (CLT), The sum of 100 random variables;
is approximately normally distributed with
Y ~ N (100 ×
) = N ( 50,
)
The approximate probability that it will take this child over 55 seconds to complete spinning can be determined as follows;
N ( 50,
)




Using Chebyshev's inequality:

Let assume that X has a symmetric distribution:
Then:


where: (
)
