Answer:
Step-by-step explanation:
The idea behind the standard deviation is to quantify the spread of a distribution by measuring how far the observations are from their mean. The standard deviation gives the average (or typical distance) between a data point and the mean.
See below for the organized result in a two-way frequency table
<h3>How to organize the results?</h3>
The given parameters are:
Candies = 18
Chocolate and Caramel = 10
None = 3
Chocolate = 12
Using the above parameters, we have the following rows and columns:
Chocolate
Present Absent Total
Caramel Present
Absent
Total
Next, we populate the table as follows:
Chocolate
Present Absent Total
Caramel Present 10 3
Absent
Total 12
The total number of candies is 18.
So, we have:
Chocolate
Present Absent Total
Caramel Present 10 3 13
Absent
Total 12 6 18
Subtract the cells from the column total
Chocolate
Present Absent Total
Caramel Present 10 3 13
Absent 2 3 5
Total 12 6 18
The above represents the organized result
Read more about two-way frequency table at:
brainly.com/question/16148316
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Let a be the constant the quadratic term
y = ax²
32 = a(2)²
a = 8
Using the same method for each pair of x and y, we can confirm that the value of a is 8.
The answer is A.
Answer:
c x =3
Step-by-step explanation:
Answer:
this angle is a right angle(90°)
and one of the 2 angles is 30
3x+30=90
3x=90-30
3x=60
x=20
==> B