Answer:
Rationalize the denominator by multiplying by the conjugate of (1 + √3), namely (1 - √3). this gives us
(1 - √3) / (1 - 3) or (1 - √3) / -2, which can be rewritten as
(-1 + √3)/2, the last answer choice.
Answer:
A
Step-by-step explanation:
The distribution is not a standard normal distribution.
We know that the variable (X) usually obeys and follows a standard normal distribution provided that the summation of (X) is zero and the variance of the random variable V(X) = 1.
Mathematically:
E(X) = 0 and V(X) = 1
Given that;
- the mean which follows a normal distribution (X) = 4.5338 g, and
- the standard deviation SD(X) = 0.1039 g
As such, the distribution is not a standard normal distribution.
Therefore, we can conclude that the distribution is not a standard normal distribution.
Learn more about standard normal distribution here:
brainly.com/question/11876263?referrer=searchResults
Answer:
Interval within 1 standard deviation: (16.3,19.7)
Interval within 2 standard deviation: (14.6, 21.4)
Interval within 3 standard deviation: (12.9, 23.1)
Step-by-step explanation:
We are given the following in the question:
Population mean, 
= 18
Standard deviation, 
= 1.7
We have to find the following intervals:
Interval within 1 standard deviation:
Interval within 2 standard deviation:
Interval within 3 standard deviation:
