Answer:
- <u>The correct statement is the first one: </u><u><em>The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean</em></u><em> </em>
<em />
Explanation:
To calculate how many<em> standard deviations</em> a particular value in a group is from the mean, you can use the z-score:
       
Where:
 is the number of standard deviations the value of x is from the mean is the number of standard deviations the value of x is from the mean
 is the mean is the mean
 is the standard deviation is the standard deviation
Substitute in the formula:
        
Which means that <em>the number of blue-eyed students in Mr. Garcia's class is 2 standard deviations</em> above the mean.
Above the mean is the same that to the right of the mean, because the in the normal standard probability graph the central value is Z = 0 (the z-score of the mean value is 0), the positive values are to the right of the central value, and the negative values are to the left of the central value.
Therefore, the correct statement is the first one: <em>The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean, </em>
 
        
             
        
        
        
Answer:
39.837168574084177751131265854635
Step-by-step explanation:
If you plug it into a calculator, you get that.
Next time, please pay attention in class and save us all a little trouble.
 
        
             
        
        
        
Answer:
The probability that she was on her next roll is 1/2
Step-by-step explanation:
If she does not roll 1,3 or 6, she wins 
So if she rolls 2,4 and 6 , she wins 
The probability of rolling each is 1/6 each 
So the probability of rolling any of the three will be:
1/6 + 1/6 + 1/6 = 3/6 = 1/2 
 
        
             
        
        
        
Answer:
<em>The expression is </em><em>P - 5</em>
Step-by-step explanation:
Rihanna already made a deposit of $5 to buy the necklace (given)
Full price of necklace = P
Let m = how much Rihanna has left to pay
Full price of necklace = amount paid + amount left to pay 
= 5 + m
So we equate the two full necklace prices
5 + m = P
m = P - 5 
Therefore, the amount Rihanna owes before tax = P - 5 
 
        
             
        
        
        
Answer:
The correct option is (A).
Step-by-step explanation:
The function representing the growth of number, in billions, of the DNA sequences in a database x years since 2010 is:

The general growth function can be represented as:

Here,
<em>y</em> = final value
<em>a</em> = initial value
<em>r</em> = growth rate
<em>t</em> = time
Com-paring the two functions we get:

This implies that the annual increase rate in number, in billions, of the DNA sequences is 32%.
Thus, the correct option is (A).