The marked prize of a bicycle is Rs 5550. What will the prize of a bicycle if the 15% VAT was leived allowing 10% discont on it?
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Answer:
0
Step-by-step explanation:
The explanation is in the attached file.
Sidenote: Hope this helps! :D
we know,
where,
- a = 2 cm
- b = 5 cm
- area = 28 cm²
So,
so, missing lenght = 8 cm
Let 
denote the random variable representing a given number in the total set of numbers. We're told that 
of the numbers fall within a given range, so we know
where is normally distributed with mean 45 and an unknown variance 
.
Let's make the transformation to a random variable with a standard normal distribution:
Since
is symmetric, we have
The mean of is 0, and by symmetry we know that exactly half of the distribution falls to the left of 
, so 
. We're left with
This probability corresponds to a value of
, which means
where
Let's make the transformation to a random variable with a standard normal distribution:
Since
The mean of
This probability corresponds to a value of