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:
sorry I dont know
Step-by-step explanation: sorry i dont know
5 • 14 = 70
5 • 12 • 1/2 = 30
30 + 70 = 100
The answer is 100.
Hope this helps!
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Answer:
Jacob's rate of return is <u>19.2%</u>.
Step-by-step explanation:
Given:
Jacob invested $500 in a stock and after a year had $596.
Now, to find the rate of return.
So, we get the amount of return first:
Present value - value before a year = Return.
$596 - $500 = $96.
Now, to get the rate:
Return / Value before a year × 100.



Therefore, Jacob's rate of return is 19.2%.