To find the mean:
Original dataset: {0, 10, 15, 4, 70, 15, 18, 20, 6, 8, 10, 12, 15, 18, 20, 2, 35, 40, 10}
Step 1: Add all the numbers together
0 + 10 + 15 + 4 + 70 + 15 + 18 + 20 + 6 + 8 + 10 + 12 + 15 + 18 + 20 + 2 + 35 + 40 + 10 = 290
Step 2: Divide the sum by the total number of data points (19 in this case)
Mean = 290 / 19 = 15.3 (rounded to one decimal place)
New dataset after removing "70": {0, 10, 15, 4, 15, 18, 20, 6, 8, 10, 12, 15, 18, 20, 2, 35, 40, 10}
Step 1: Add all the numbers together
0 + 10 + 15 + 4 + 15 + 18 + 20 + 6 + 8 + 10 + 12 + 15 + 18 + 20 + 2 + 35 + 40 + 10 = 243
Step 2: Divide the sum by the total number of data points (18 in this case because "70" was removed)
Mean = 243 / 18 = 13.5 (rounded to one decimal place)
Therefore,
The mean of the original dataset is 15.3
The mean of the new dataset after "70" is removed is 13.5
Question The director of a local Parks and Recreation department is interested in the number of hours kids spend outside each week. She surveys a group of 19 kids in her town and asks them how many hours they spent outside last week. Her results follow.
{0,10,15,4,70,15,18,20,6,8,10,12,15,18,20,2,35,40,10}
The director decides to remove the data value “70” since it is a lot larger than the rest of the data values. Calculate the mean of the original dataset and the mean of the new dataset after “70” is removed. Round your answers to one decimal place.
The mean of the original dataset is __________. The mean of the new dataset after “70” is removed is _____________ .
pls help bot!
3 answers
the dataset is 17.3 what is removed
Apologies for the oversight. Let's recalculate the means:
Original dataset: {0, 10, 15, 4, 70, 15, 18, 20, 6, 8, 10, 12, 15, 18, 20, 2, 35, 40, 10}
Step 1: Add all the numbers together
0 + 10 + 15 + 4 + 70 + 15 + 18 + 20 + 6 + 8 + 10 + 12 + 15 + 18 + 20 + 2 + 35 + 40 + 10 = 290
Step 2: Divide the sum by the total number of data points (19 in this case)
Mean = 290 / 19 = 15.3 (rounded to one decimal place)
New dataset after removing "70": {0, 10, 15, 4, 15, 18, 20, 6, 8, 10, 12, 15, 18, 20, 2, 35, 40, 10}
Step 1: Add all the numbers together
0 + 10 + 15 + 4 + 15 + 18 + 20 + 6 + 8 + 10 + 12 + 15 + 18 + 20 + 2 + 35 + 40 + 10 = 247
Step 2: Divide the sum by the total number of data points (18 in this case because "70" was removed)
Mean = 247 / 18 = 13.7 (rounded to one decimal place)
Therefore,
The mean of the original dataset is 15.3
The mean of the new dataset after "70" is removed is 13.7
Original dataset: {0, 10, 15, 4, 70, 15, 18, 20, 6, 8, 10, 12, 15, 18, 20, 2, 35, 40, 10}
Step 1: Add all the numbers together
0 + 10 + 15 + 4 + 70 + 15 + 18 + 20 + 6 + 8 + 10 + 12 + 15 + 18 + 20 + 2 + 35 + 40 + 10 = 290
Step 2: Divide the sum by the total number of data points (19 in this case)
Mean = 290 / 19 = 15.3 (rounded to one decimal place)
New dataset after removing "70": {0, 10, 15, 4, 15, 18, 20, 6, 8, 10, 12, 15, 18, 20, 2, 35, 40, 10}
Step 1: Add all the numbers together
0 + 10 + 15 + 4 + 15 + 18 + 20 + 6 + 8 + 10 + 12 + 15 + 18 + 20 + 2 + 35 + 40 + 10 = 247
Step 2: Divide the sum by the total number of data points (18 in this case because "70" was removed)
Mean = 247 / 18 = 13.7 (rounded to one decimal place)
Therefore,
The mean of the original dataset is 15.3
The mean of the new dataset after "70" is removed is 13.7