Answer:
y = -5/4x + 17
Step-by-step explanation:
Formula for standard deviation sample calculation is:
SD = sqrt (( ∑( x - m)²) / ( n - 1 )),
where x stays for each value in the data set, m stays for mean of all values in the data set, and n stays for the number of values in the data set.
For example: Find the sample standard deviation for the set of numbers: 10, 11, 11, 12, 12.
First we will find mean of all avlues: m = ( 10 + 11 + 11 + 12 +12 ) / 5 = 11.2
SD = sqrt (( 1.2² + 0.2² + 0.2² + 0.8² + 0.8² ) / ( 5 - 1 ))=
= sqrt ( 2.8 / 4 ) = √0.7 = 0.837
Answer:
The balance is $256
Step-by-step explanation:
Given
Required
Determine the balance after 20 visits
Represent the balance with b
Represent the visitation with v
The relationship between the given parameters is:
This gives:
Make b the subject
To get the actual balance after 20 visitation;
Substitute 20 for v
Hence:
<em>The balance is $256</em>
Answer:
0.28 dal
Step-by-step explanation:
1 decaliter (dal) = 100 deciliter (dl)
28 dl = 28/100 dal
=0.28 dal
