For which experiment are the elements of the dataset most likely to be measured in liters?(1 point)
Responses
Tracey asks her friends to estimate the weight of a bucket full of water.
Tracey asks her friends to estimate the weight of a bucket full of water.
Lora asks her neighbors how much water they drink each day.
Lora asks her neighbors how much water they drink each day.
Ingram asks the local fire department how long it takes them on average to put out a fire.
Ingram asks the local fire department how long it takes them on average to put out a fire.
Thaddeus asks his friends how far they live from the local library.
I apologize for the mistake. The experiment where the elements of the dataset are most likely to be measured in liters is "Lora asks her neighbors how much water they drink each day."
thats wrong
Kwon records the low temperatures in degrees Celsius on 10 consecutive days. His dataset includes the following numbers:
18, 16, 21, 10, 10, 15, 12, 20, 17, 11
Kwon uses the template below to create a histogram with bins as shown.
----------------------------------------
10 14 18 22
Which bar will be the highest? Identify the range for the correct bar.
(1 point)
The range for the bar with the highest frequency will be 10-14. The highest bar will represent the range of 10-14.
Loren’s friends jump as far as they can and record their results in inches. Their results include the observations 42, 47, 50, 42, 45, 41, 49, 51, and 44. Which number, if added to the dataset, would represent an outlier in the data?(1 point)
Responses
40
40
72
72
44
44
52
The number 72, if added to the dataset, would represent an outlier in the data.
Statistics Unit Test
5 of 155 of 15 Items
Question
Use the image to answer the question.
An illustration shows a bar graph with four bars extending vertically from the x-axis. The horizontal axis ranges from 10 to 13 in increments of 1 and the vertical axis ranges from 0 to 5 in increments of 1. The bar placed at 10 on the x-axis extends to 2 on the y-axis. The bar placed at 11 on the x-axis extends to 4 on the y-axis. The bar placed at 12 on the x-axis extends to 4 on the y-axis. The bar placed at 13 on the x-axis extends to 2 on the y-axis.
What are the values of the mean, median, and spread for the dataset shown in the bar graph?
(2 points)
The mean for the dataset is calculated as (2*10 + 4*11 + 4*12 + 2*13) / (2+4+4+2) = 11.5.
The median is the middle value of the dataset, which is 11.
The spread for the dataset can be measured by finding the range, which is 13-10 = 3.
Use the table to answer the question.
Day of the Week Temperature
Sunday 45 degrees
Monday 52 degrees
Tuesday 44 degrees
Wednesday 62 degrees
Thursday 55 degrees
Friday 49 degrees
Saturday 50 degrees
Find the mean and median of the past week’s temperatures.
(1 point)
The mean of the past week's temperatures is calculated as (45+52+44+62+55+49+50)/7 = 50.7 degrees.
The median is the middle temperature value of the sorted dataset. The ordered dataset is: 44, 45, 49, 50, 52, 55, 62. Therefore, the median is 50 degrees.
Use the table to answer the question.
Game Free Throws Made
1 4
2 14
3 5
4 7
5 19
6 15
7 6
What value, the mean or median, best describes the shape of the data set that contains the number of free throws made by the basketball team? Choose 1 for mean and 2 for median.
The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29. What are the first and third quartiles?(1 point)
To find the first quartile, we need to find the median of the first 5 prime numbers, which are 2, 3, 5, 7, and 11. The median here is 5.
To find the third quartile, we need to find the median of the last 5 prime numbers, which are 13, 17, 19, 23, and 29. The median here is 19.
Therefore, the first quartile is 5 and the third quartile is 19.
The highest temperatures measured at Death Valley, California, from 1995 to 2004 are given as a dataset.
127, 125, 125, 129, 123, 126, 127, 128, 128, 125
Find the range and the interquartile range of the dataset.
(1 point)
To find the range, we subtract the minimum value (123) from the maximum value (129) in the dataset:
Range = 129 - 123 = 6
To find the interquartile range (IQR), we first need to find the first and third quartiles of the dataset.
The median of the dataset is (125+125)/2 = 125, since there are an even number of elements.
Since there are 10 elements, the lower half of the dataset contains the first 5 values, and the upper half contains the last 5 values.
The first quartile (Q1) is the median of the lower half of the data, which is (123+125)/2 = 124.
The third quartile (Q3) is the median of the upper half of the data, which is (127+128)/2 = 127.5.
IQR = Q3 - Q1 = 127.5 - 124 = 3.5.
Therefore, the range of the dataset is 6 and the interquartile range is 3.5.
The number of apples produced per tree in Zara’s orchard is 125, 198, 209, 213, 101, 178. What is the mean absolute deviation of the dataset? Round to the nearest tenth.
First, we need to find the mean of the dataset:
Mean = (125+198+209+213+101+178)/6 = 156
Next, we find the absolute deviations of each element from the mean:
|125-156| = 31
|198-156| = 42
|209-156| = 53
|213-156| = 57
|101-156| = 55
|178-156| = 22
Then, we find the mean of these absolute deviations:
Mean Absolute Deviation = (31+42+53+57+55+22)/6 ≈ 44.2
Rounding this to the nearest tenth, we get the mean absolute deviation of the dataset as 44.2.
Niran surveyed the students in his class on how many hours they spent on their project Here are the results:
0.5, 1.0, 1.0, 1.0, 1.5, 2.0, 2.0, 2.0, 2.5, 3.0, 3.5, 3.5, 3.5, 4.0, 5.0, 6.0, 8.0, 10
Which of the following is the IQR of the dataset and explains what the value means for this dataset?
(1 point)
Responses
The IQR is 2.75. This means that 2.75 hours is the range of the number of hours spent on the project for 50% of the students.
The IQR is 2.75. This means that 2.75 hours is the range of the number of hours spent on the project for 50% of the students.
The IQR is 2.5. This means that 2.5 hours is the range of the number of hours spent on the project for 50% of the students.
The IQR is 2.5. This means that 2.5 hours is the range of the number of hours spent on the project for 50% of the students.
The IQR is 2.5. This means that 2.5 hours is the range of the number of hours spent on the project for the middle 50% of the students.
The IQR is 2.5. This means that 2.5 hours is the range of the number of hours spent on the project for the middle 50% of the students.
The IQR is 2.75. This means that 2.75 hours is the range of the number of hours spent on the project for the middle 50% of the students.
The IQR is 2.75. This means that 2.75 hours is the range of the number of hours spent on the project for the middle 50% of the students.
The IQR is 2.75. This means that 2.75 hours is the range of the number of hours spent on the project for the middle 50% of the students.
Which measure of variability—range or IQR—best describes the spread of the dataset?
For a statistics assignment, Shayna randomly surveyed students on how many hours per week they spend playing online games:
1.0 1.0 2.0 6.5 10.0 10.0 10.0 10.0 12.0 12.5 14.0 14.0 14.0 14.0 15.0 15.0 15.5 16.0 17.5 18.0
(1 point)
Responses
Range; the distribution is symmetrical, or close to it, and there aren’t any outliers in the dataset.
Range; the distribution is symmetrical, or close to it, and there aren’t any outliers in the dataset.
Range; the distribution is skewed, and there are outliers in the dataset.
Range; the distribution is skewed, and there are outliers in the dataset.
IQR; the distribution is skewed, and there are outliers in the dataset.
IQR; the distribution is skewed, and there are outliers in the dataset.
IQR; the distribution is symmetrical, or close to it, and there aren’t any outliers in the dataset.
IQR; the distribution is symmetrical, or close to it, and there aren’t any outliers in the dataset.