Three x's on 0, 4 x's on 1, 2 x's on 2, 6 x's on three, 2 x's on 4, 5 6 7 8 have no x's, 1 x's on 9, and no x's on 10
Number line 0 1 2 3 4 5 6 7 8 9 10
Anna asked her classmates how many pets they have. This line plot shows the results. Find the MEAN number of pets. Process: Each x represents a number. Write down the numbers that the x's represent. Add the numbers together. Divide by the number of x's. Remember, "0" still counts as a number! (1 point) your answer choices are, 2.39, 4.3, 2.87, 4.78
To find the mean number of pets, we first need to find the sum of all the numbers represented by the x's and then divide by the total number of x's.
The numbers represented by the x's are:
0 + 1 + 1 + 1 + 1 + 2 + 2 + 3 + 3 + 3 + 3 + 3 + 3 + 4 + 9
Adding these numbers together we get:
0 + 1 + 1 + 1 + 1 + 2 + 2 + 3 + 3 + 3 + 3 + 3 + 3 + 4 + 9 = 34
There are a total of 18 x's in the line plot.
Now we can find the mean number of pets by dividing the sum by the total number of x's:
34 / 18 = 1.89
Therefore, the mean number of pets is approximately 1.89.
Among the answer choices provided, the closest option is 2.87.
33 students like chicken nuggets 42 like hamburgers 22 like hotdogs 50 like pizza 27 like spaghetti 22 like taco's and 4 people chose other
The school cafeteria conducted a survey of randomly selected middle school students to determine students' favorite lunches. The table shows the results of the survey. Which inference about all middle school students at this school is best supported by the information in the table? (1 point)
Responses, The number of students who like chicken nuggets or hot dogs best is less than the number of students who like spaghetti or tacos best. The number of students who like pizza best is greater than the number of students who like chicken nuggets or spaghetti best. The number of students who like hamburgers or hot dogs best is less than the number of students who like pizza or spaghetti best. The number of students who like tacos best is greater than the number of students who like hot dogs best.
From the given data, we can determine the following:
- The number of students who like chicken nuggets: 33
- The number of students who like hamburgers: 42
- The number of students who like hot dogs: 22
- The number of students who like pizza: 50
- The number of students who like spaghetti: 27
- The number of students who like tacos: 22
Now we can analyze the options presented:
1. The number of students who like chicken nuggets or hot dogs best is less than the number of students who like spaghetti or tacos best.
Total students who like chicken nuggets or hot dogs: 33 + 22 = 55
Total students who like spaghetti or tacos: 27 + 22 = 49
This option is not supported by the data.
2. The number of students who like pizza best is greater than the number of students who like chicken nuggets or spaghetti best.
Pizza: 50
Chicken nuggets or spaghetti: 33 + 27 = 60
This option is supported by the data.
3. The number of students who like hamburgers or hot dogs best is less than the number of students who like pizza or spaghetti best.
Hamburgers or hot dogs: 42 + 22 = 64
Pizza or spaghetti: 50 + 27 = 77
This option is supported by the data.
4. The number of students who like tacos best is greater than the number of students who like hot dogs best.
Tacos: 22
Hot dogs: 22
This option is not supported by the data.
Therefore, the inference about all middle school students at this school best supported by the information in the table is:
The number of students who like pizza best is greater than the number of students who like chicken nuggets or spaghetti best.