The value of z score for the history class test of Opal’s test score is negative one (-1).
<h3>What is normally distributed data?</h3>
Normally distributed data is the distribution of probability which is symmetric about the mean.
The mean of the data is the average value of the given data. The standard deviation of the data is the half of the difference of the highest value and mean of the data set.
The z score for the normal distributed data can be given as,

The mean value of the scores of history class is,

The standard deviation value of the scores of history class is,

Here, the test score of the Opal’s is 72. Thus the z score for her test score can be given as,

Hence, the value of z score for the history class test of Opal’s test score is negative one (-1).
Learn more about the normally distributed data here;
brainly.com/question/6587992
Answer:
Step-by-step explanation:
Here the answer
Answer: x = -2 and x = -1
Explanation:
The solution of an equality is the set of values of the unknown for which both members are equal. In this case, the values of x for which the two functions are equal.
The table shows three values of x for which the outputs of both f(x) and g(x) are equal. Those values of x are the solutions of the equality f(x) = g(x).
Such points are:
(-2,4) and (-1,2).
Realize that means that for x = -2 and x = -1, the values of both functions f(x) and g(x) are the same.
So, according to the table, x = -2, and x = -1 are solutions to f(x) = g(x)
Answer:
I think it is 160 x2 so you would probably divide 160 by x2 which would 144
Step-by-step explanation:
8 positions x 8 employees = 64 different ways