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: (
)

Answer
its b
Step-by-step explanation:
Answer:
-17
Step-by-step explanation:
You subtract $45 from $28 and get a negative number
Maybe 3(6x+15)
not sure what you're looking for