21. A college professor recorded the speed with which students ran out the door after class after taking the final exam (using a
radar gun) for each of the last 4 semesters. The histogram below shows the distribution of speed for 168 students. The maximum value is 18 mph.
The value, 18 mph, was actually supposed to be 8 mph and this error is corrected. Which of the following is true?
(A) The mean will change the same amount as than the median, and the range will change the same amount as the SD.
(B) The mean will change more than the median, and the range will change more than the SD.
(C) The median will change more than the mean, and the range will change more than the SD.
(D) The mean will change more than the median, and the SD will change more than the range.
(E) The median will change more than the mean, and the SD will change more than the range.
The value, 18 mph, was actually supposed to be 8 mph and this error is corrected. Which of the following is true?
(A) The mean will change the same amount as than the median, and the range will change the same amount as the SD.
(B) The mean will change more than the median, and the range will change more than the SD.
(C) The median will change more than the mean, and the range will change more than the SD.
(D) The mean will change more than the median, and the SD will change more than the range.
(E) The median will change more than the mean, and the SD will change more than the range.
1 answer:
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Answer:
x > 36 in
Step-by-step explanation:
Let x = the width of the picture frame.
Then x + 6 = the length of the frame.
The formula for the perimeter P of a rectangle is'
P = 2l + 2w.
So, the condition is
2l + 2w > 156
2(x + 6) + 2x > 156 Distribute the 2
2x + 12 + 2x > 156 Combine like terms
4x + 12 > 156 Subtract 12 from each side
4x > 144 Divide each side by 4
x > 36
The perimeter of the picture frame will be greater than 156 in if x > 36 in.
Hey there!
Let's write this as a ratio/proportion.
The sum of this basic ratio is 4.25.
To figure out how much of each we have for 34, we divide this 34 by 4.25, our sum of the two ingredients. This will give us a factor we can multiply our two ingredient measurements by.
34/4.25=8
Now, we multiply our two ingredients by eight.
2.75(8)=22
1.5(8)=12
Note that these two add up to make 34 tablespoons.
Therefore, we have...
22 tablespoons of olive oil and 12 tablespoons of balsamic vinegar were used in the 34 tablespoons of bread dip.
I hope this helps! Have a great day! :)