Answer:
Option (c) is correct.
68% of the data points lie between 10 and 18.
Step-by-step explanation:
Given :  a normal distribution with a standard deviation of 4 and a mean of 14
We have to choose the  sentence that correctly describes a data set that follows a normal distribution with a standard deviation of 4 and a mean of 14.
Since, given 68% data.
We know mean of data lies in middle.
And standard deviation is distribute equally about the mean that is 50% of values less than the mean  and 50% greater than the mean.
So, 68% of data lies
mean - standard deviation = 14 - 4 = 10
mean + standard deviation = 14 + 4 = 18
So, 68% of the data points lie between 10 and 18.
 
        
             
        
        
        
I'm not gonna use point-slope form but I will tell you the equation in slope-intersect form. Perpendicular means that the slopes of the 2 equations have to be opposite reciprocals. That means if one is 2, the other slope has to be -1/2. Since the slope is 3, the slope of the equation you are making is -1/3. using desmos.com, I found out that the y-intercept has to be -1, so the equation is y=-1/3x-1
        
             
        
        
        
Answer:
1. 
2. 
3.
Step-by-step explanation:
<u>QUESTION 1</u>
The given data set for the expenditure is

The formula for calculating the mean is given by,

We need to add all the expenditure and divide by the total number of days.

This gives us,

 to the nearest hundredth.
 to the nearest hundredth.
<u>QUESTION 2</u>
The standard  deviation of the data set is given by the formula;

This implies that,

This will give us,




to the nearest hundredth,
 .
.
<u>QUESTION 3</u>
 The variance is the square of the standard deviation.


To the nearest hundred gives,

 
 
        
             
        
        
        
60% please make me as the most brainlyest
        
                    
             
        
        
        
Answer:30
150
 Obtuse 
 Acute 
Adjacent 
Step-by-step explanation: