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:
1. (3) 2. (4) 3. (-1)
Step-by-step explanation:
if you graph them then you get the answer.
Answer: 7
Add up the values to get 4+10 = 14
Then divide that result over 2 to get 14/2 = 7
This is using the midpoint formula.
Answer:
By the looks of it the answer is A
Step-by-step explanation:
surface area if pyramid=area of base+combined area of lateral faces.
area of base=8×8=64
combined area if lateral faces=area of one triangle:area=base×height
=8×12=96
Total surface area=64+96
=160m square
