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1 answer:
Answer: Check out the screenshot below for the answers
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Explanation:
For each column, we divide the values by the sum of each column.
The sum of the first column is 6+8 = 14, and the sum of the second column is 7+3 = 10.
Column 1:
- 6/14 = 0.43
- 8/14 = 0.57
Those values are approximate to two decimal places.
Column 2:
- 7/10 = 0.70
- 3/10 = 0.30
Those values are exact.
The values in bold are then filled in the table as you see below.
A result like 0.43 means that 43% of those who play a sport also play an instrument. The other values are interpreted in a similar fashion.
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Answer:
Range = 115$
Standard Deviation = 43.76$
Variance = 1915.142$
Option A) The measures of variation are not very useful because when searching for a room, low prices, location, and good accommodations are more important than the amount of variation in the area.
Step-by-step explanation:
We are given the data for prices in dollars for one night at different hotels in a certain region.
234, 160, 119, 131, 218, 207, 146, 141
Range:
Sorted data: 119, 131, 141, 146, 160, 207, 218, 234
Standard Deviation:
where are data points,
is the mean and n is the number of observations.
Sum of squares of differences = 4160.25 + 90.25 + 2550.25 + 1482.25 + 2352.25 + 1406.25 + 552.25 + 812.25 = 13406
Variance =
Measure of variance for someone searching for room:
Option A) The measures of variation are not very useful because when searching for a room, low prices, location, and good accommodations are more important than the amount of variation in the area.
Answer:
Here c represents the total number of children in choir.
As per the statement:
Total number of boys in choir = 12
It is also given that: Three sevenths of a children's choir are boys.
⇒ Total number of boys =
or
By cross multiply we have;
84 = 3c
Divide both sides by 3 we have;
c = 28
Therefore, the total number of children in choir is 28 children
Answer:
<h3>The change in the scale factor isStep-by-step explanation:
Given that Sienna planned a trapezoid-shaped garden.
And She decides to change the length of the top of the trapezoid-shaped garden from 32 ft to 24 ft.
Let Old length of the top be 32 ft
Let New length of the top be 24 ft
ft