NEED HELPPP The graph shows the number of hours randomly selected students spent on math homework. What is the mean number of hours students spent on math homework?
(1 point)
NEED HELPPP For 10 consecutive days, Anthony recorded the daily high temperatures in Dayton and Laredo. The table shows the data.
Daily High Temperatures (in °F)
Dayton 77 82 85 87 90 85 79 86 91 88
Laredo 81 79 80 86 88 92 82 88 84 87
Which city has a higher median daily high temperature? How much higher is this city’s median than the other city’s median daily high temperature?
(1 point)
HELPPPP The following data set represents the highway fuel efficiency in miles per gallon (mpg) of randomly selected cars from two car companies.
Car Company A: 35, 28, 35, 30, 31, 38, 35, 30
Car Company B: 29, 33, 36, 27, 34, 34, 34, 25
Which of the following statements is true?
(1 point)
The mean highway fuel efficiency for car company A is higher than the mean for car company B.
HELPPP
Measures of Center Quick Check
5 of 55 of 5 Items
Question
The randomly selected delivery times (in minutes) of two fast food restaurants are as follows.
Fast Food 1 Fast Food 2
42 40
38 37
37 40
39 41
38 38
40 46
45 41
41 37
40 40
Which of the following statements is false?
(1 point)
Responses
Both fast food restaurants have the same mean delivery time of 40 minutes.
Both fast food restaurants have the same mean delivery time of 40 minutes.
Both fast food restaurants have the same median delivery time of 40 minutes.
Both fast food restaurants have the same median delivery time of 40 minutes.
Both fast food restaurants have exactly one modal delivery time of 40 minutes.
Both fast food restaurants have exactly one modal delivery time of 40 minutes.
Neither data set contains an outlier.
The statement "Both fast food restaurants have exactly one modal delivery time of 40 minutes" is false.
Fast Food 1 has two modes: 38 and 40 minutes.
Fast Food 2 also has two modes: 37 and 40 minutes.
HELPPP The temperatures (in °F) in a city on randomly selected days during the summer are 89, 85, 90, 87, 86, 91, 88, and 89. What is the mean temperature? Round your answer to one decimal place.(1 point)
To find the mean temperature, we add up all the temperatures and divide by the total number of temperatures:
(89 + 85 + 90 + 87 + 86 + 91 + 88 + 89) / 8 = 88.5
The mean temperature is 88.5 degrees Fahrenheit.
The low temperatures during one week in January were 2°, −3°, −9°, −11°, 1°, −8°, and −9°. What was the median low temperature that week?(1 point)
To find the median low temperature, we need to arrange the temperatures in order from lowest to highest:
-11°, -9°, -9°, -8°, -3°, 1°, 2°
There are seven temperatures in the set, so the median is the fourth number (counting from the left) or the fourth number (counting from the right), or the average of the 4th and 5th numbers.
Therefore, the median low temperature is -8°.
The stem-and-leaf plot shows the ages of a group of friends. Find the median age.
Stem Leaf
2 8
3 1 2 4
4 2 7 9
5 4
Key: 2|8=28 years
(1 point)
To find the median age, we need to write the ages in order from least to greatest:
28, 31, 32, 34, 42, 47, 49, 54
Since there are eight ages in the group, the median is the average of the fourth and fifth ages.
Therefore, the median age is:
(34 + 42) / 2 = 38
Here are the math test scores of 10 randomly selected students from Class 1 and Class 2.
Class 1: 75 80 84 79 92 86 88 86 86 90
Class 2: 83 85 91 93 72 85 76 80 82 89
Find the mean score of each sample. Based on the mean, which class generally performed better on the math test?
(2 points)
The mean score for Class 1 is
. The mean score for Class 2 is
. Based on the mean, Class
generally performed better on the math test.
To find the mean score of each sample, we need to add up all the scores and divide by the total number of scores:
Mean score for Class 1: (75 + 80 + 84 + 79 + 92 + 86 + 88 + 86 + 86 + 90) / 10 = 85 points
Mean score for Class 2: (83 + 85 + 91 + 93 + 72 + 85 + 76 + 80 + 82 + 89) / 10 = 83.6 points
Based on the mean, Class 1 generally performed better on the math test.
Measures of Center Practice
Complete this assessment to review what you've learned. It will not count toward your grade.
5 of 55 of 5 Items
Question
Kat and Joshua want to know which pizza shop has the fastest delivery time. Kat took a random sample of 8 delivery times from pizza shop 1 over a period of six months. Joshua did the same for pizza shop 2. The delivery times (in minutes) for each pizza shop are shown in the following table.
Pizza Shop 1 Pizza Shop 2
18 20
23 17
15 16
22 38
21 21
24 20
28 18
20 25
Find the median delivery time for each pizza shop. Based on the median, which pizza shop has the fastest delivery time?
(2 points)
The median delivery time of Pizza Shop 1 is
minutes. The median delivery time of Pizza Shop 2 is
minutes. Based on the median, Pizza Shop
has a faster delivery time.
HELP MEE
How may I assist you? Please let me know what you need help with.
It is not possible to answer the question without seeing the graph. Please provide the graph.
To find the median, we need to arrange the temperatures in order from lowest to highest.
Dayton: 77 79 82 85 85 86 87 88 90 91
Laredo: 79 80 81 82 84 86 87 88 88 92
For Dayton, the median is the middle value, which is 86.
For Laredo, the median is also 86.
Both cities have the same median daily high temperature.
Therefore, the difference between the median for both cities is 0.