If we suppose that the volume of Lake Rason is approximately 2.56 x 10^5 km^3 and Lake Rason is 20 times the volume of Lake Rush
1 answer:
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ANSWER
EXPLANATION
The given expression is
This is having a negative index. We must first of all change to a positive index.
Recall that,
We apply this law of exponents to get,
We cab rewrite the given expression to obtain;
This will simplify to give us,
EXPLANATION
The given expression is
This is having a negative index. We must first of all change to a positive index.
Recall that,
We apply this law of exponents to get,
We cab rewrite the given expression to obtain;
This will simplify to give us,
Answer:
99.38%
Step-by-step explanation:
We have that the mean (m) is equal to 124, the standard deviation (sd) 6.4 and the sample size (n) = 64
They ask us for P (x <126)
For this, the first thing is to calculate z, which is given by the following equation:
z = (x - m) / (sd / (n ^ 1/2))
We have all these values, replacing we have:
z = (126 - 124) / (6.4 / (64 ^ 1/2))
z = 2.5
With the normal distribution table (attached), we have that at that value, the probability is:
P (z <2.5) = 0.9938
The probability is 99.38%
