Answer:
540°
Step-by-step explanation:
Answer:
The median is 4 and the mode is also 4
Answer:
y = 3
Step-by-step explanation:
4 + 3y = 6y - 5
Move all terms containing y to the left side of the equation.
4 - 3y = - 5
Move all terms not containing y to the right side of the equation.
−3y = −9
Divide each term by −3 and simplify.
y = 3
I hope this helps!
Answer:
c.145.3 to 154.7.
Step-by-step explanation:
We have to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Z-table as such z has a p-value of .
That is z with a p-value of , so Z = 1.645.
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 150 - 4.7 = 145.3.
The upper end of the interval is the sample mean added to M. So it is 150 + 4.7 = 154.7.
Thus the correct answer is given by option c.