Answer:
In a positively skewed distribution, the mean is usually greater than the median because the few high scores tend to shift the mean to the right. ... In a negatively skewed distribution, the mean is usually less than the median because the few low scores tend to shift the mean to the left.
Step-by-step explanation:
Answer:
9/25
Step-by-step explanation:
56% = 56/100
56/100= 18/50
18/50 = 9/25
Answer:
5
Step-by-step explanation:
30-10=20
20/4
5
Volume of a cylinder = cross sectional area x height of the cylinder
So, 1728 = 3.14 x (r)^2 x 22
1728 = 69.08 x r^2
r^2 = 25.01
r = 5.00 cm
Hope I helped! xx
Answer: 
Step-by-step explanation:
Let 
represents the standard deviation .
Given : Last year, the standard deviation of the ages of the students at UA was 1.8 years.
The researcher are interested in testing to see if there has been a significant change in the standard deviation of the ages of the students at UA.
We know that the null hypothesis always contains the equal signs, then the null and alternative hypothesis is given by :-
