Answer:
A. -1.6; not significant
Step-by-step explanation:
The z-score of a data set that is normally distributed with a mean of and a standard deviation of , is given by:
.
From the question, the test score is: , the mean is , and the standard deviation is .
We just have to plug these values into the above formula to obtain:
.
This simplifies to: .
.
We can see that the z-score falls within two standard deviations of the mean.
Since the value is not significant.
The correct answer is A. -1.6; not significant
Answer:
Step-by-step explanation:
The slope of two parallel lines is the same. As long as the y-intercept is different then, the lines are parallel. Therefore, if the slope of line b is then the slope of line c must also be .
<h2><em>Answer </em></h2><h3><em>the ans is the last one</em></h3>
X=1.50y
x represents the total of the drinks, and y represents the amount of drinks bought. all you have to do is plug in the amount of drinks and solve.
Answer: 10
Step-by-step explanation:
4 4/7 - ( -54/7) = 4 4/7 + 54/7=10