The value of the z score is 1.03.
According to the statement
we have given that the value of mean and standard deviation and we have to find the value of the z score.
So, For this purpose we know that the
Z-score indicates how much a given value differs from the standard deviation. The Z-score, or standard score, is the number of standard deviations a given data point lies above or below mean.
And the given values are:
mean value = 69 inches
s.d value = 2.8 inches
And the value of x is 71.9 inches.
So, The Z score is
z = x - mean / standard deviation
substitute the values in it then
z = 71.9 - 69 / 2.8
then
z = 2.9 /2.8
z = 1.03
So, The value of the z score is 1.03.
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The computation shows that the number of groups that can be made is 4 groups.
<h3>How to calculate the number?</h3>
From the information given, it should be noted that the number is said to be more than 30 and lower than 40.
In this case, it can be noted that the number that is more than 30 and lower than 40 and can be divided into 8 is 32.
Therefore, the number in each group will be:
= 32/8
= 4
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Take the values given for domain which is the x-axis and plug then in for x to get your range which is the y-axis value
Lionel had 250 pages copied
This is because 20/.08=250.
Answer:
$0.52
Step-by-step explanation: