What is 0.004 divided by 0.05
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The value of two arithmetic means which are inserted between 3 and 24 are 24/9 and 75/9.
<h3>What is arithmetic mean?</h3>Arithmetic mean is the mean or average which is equal to the ratio of sum of all the group numbers to the total numbers.
The two arithmetic means between 3 and 24 are has to be inserted.
3, A₂, A₃, 24
All the four numbers are in arithmetic progression. The nth terms of AM can be found using the following formula:
t(n)=a(n-1)d
Here, d is the common difference a is the first terms and n is the total term. The first term, a=3 and t₄=24. Thus, the common difference is;
The second and 3rd term are:
Thus, the value of two arithmetic means which are inserted between 3 and 24 are 24/9 and 75/9.
Learn more about the arithmetic mean here;
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Answer:
Step-by-step explanation:
Given:
To make the subject of the formula means that we want to make
to stand alone , the first thing to do is to multiply through by 1/4a , that is
take the square of both sides:
If is a random variable representing test scores, then the 41st percentile is the score
such that
. Transform
to the random variable
that follows the standard normal distribution via
:
The -score for the 41st percentile is about -0.2275, so