Step-by-step explanation:
hope it helps you........
(a)
Q1, the first quartile, 25th percentile, is greater than or equal to 1/4 of the points. It's in the first bar so we can estimate Q1=5. In reality the bar includes values from 0 to 9 or 10 (not clear which) and has around 37% of the points so we might estimate Q1 a bit higher as it's 2/3 of the points, say Q1=7.
The median is bigger than half the points. First bar is 37%, next is 22%, so its about halfway in the second bar, median=15
Third bar is 11%, so 70% so far. Four bar is 5%, so we're at the right end of the fourth bar for Q3, the third quartile, 75th percentile, say Q3=40
b
When the data is heavily skewed left like it is here, the median tends to be lower than the mean. The 5% of the data from 80 to 120 averages around 100 so adds 5 to the mean, and 8% of the data from the 60 to 80 adds another 5.6, 15% of the data from 40 to 60 adds about 7.5, plus the rest, so the mean is gonna be way bigger than the median of around 15.
Answer:
13.5
Step-by-step explanation:
(Are you meaning this as the answer is a decimal?)
3/50 * 225/1
<em>Cross-cancel 50 and 225 by cancelling out 25.</em>
3/2 * 9/1
<em>Rewrite this so it is a single fraction.</em>
(3 * 9)/2
<em>Multiply 3 by 9 to get 27.</em>
27/2
<em>Divide 27 by 2 to get 13.5.</em>
13.5
6% of 225 is 13.5.
Answer:
56
Step-by-step explanation:
V=lwh/3
im guessing its a square pyramid?
14(12)/3
=56
Two parallel lines have the same slope.
the slope of the given line is: -2y=-3x+12
y=3/2x -6
so the slope is 3/2
the new line passes (0,0), so the equation is simply:
