Answer:
Step-by-step explanation:
The right statistical procedure is by applying a hypothesis test that uses a single mean. Here, if we are to talk about comparison, it should be between the mean IQ of the students in the class and the national average IQ. The class is not for a comparison between two population means because it is viewed as the sample of the population. That is to say, the required task is to determine if the sample mean is greater than the population mean. We can conclude that this obeys a hypothesis test rather than a confidence interval.
Answer:
x+9
Step-by-step explanation:
f(x) = x, going up 9
that is y=x, going up 9
if you wnat to go up, subtract 9 from y
y -9 = x
y=x+9
convert back to f(x)
f(x) = x+9
Answer:
4 parts 3
Step-by-step explanation:
She needs 700 milliliters more. 700 ml is 0.7 liters
Answer:
Option (4)
Step-by-step explanation:
Slope a line passing through two points 
and 
is given by,
m = 
Since, blue line is passing through two points (-4, -2) and (0, 4),
Slope of the blue line = 
= 
Similarly, green line is passing through two points (-4, 1) and (0, -2),
Slope of the green line = 
= 
Since, 
Neither these slopes are opposite reciprocals.
Therefore, both the lines are neither parallel nor perpendicular.
Option (4) will be the correct option.
