What you can say is:
2 choices for the first one (metals)
5 choices for the second choice stemming off of all the possible first choices (gems)
2 choices stemming off of all those combinations (shape)
So basically it would be:
2 * 5 * 2
Which is equal to 20.
You divide 7 by 10 and you will get your answer
I believe it’s 37.0 g is more precise
Answer:
Independence chi-square test
Step-by-step explanation:
The Chi-Square Test for independence is a type of statistical hypothesis test that is used to determine the existence of an association or relationship between nominal or categorical variables
The chi-square is given by the following formula;

The number of participants = 80
The number that assigned a verdict of guilty = 27
The number that assigned a verdict of not guilty by reason of self defense = 49
The number that assigned a verdict of not guilty by reason of insanity = 4
Independence Chi Square test
The table of values is presented as follows;
Expected Value = (Row sum * Column Sum)/(Grand Total)
Expected Value for Guilty = 27 × 80/80 = 27
Expected Value for Self Defense = 49 × 80/80 = 49
Expected value for Insanity = 4 × 80/80 = 4

370.75 ~ 371
Example:
To find the average for 10,18 and 13.
We just have add the following numbers and divided them by how many numbers you added.
Solution:
10 + 18 + 13 = 41
41 / 3 = 13.67 or 14
Then the average score is 14.
Measures of central tendency are a statistical method in which you measure and gather the middlemost value of the set of parameters.
1. Median
2. Mode
<span>3. Mean, this is considered to be the average in lay man's term.<span>
</span></span>