Question

graph worksheet
graphing & intro to science
a. graph the following information in a bar graph. label and number the x and y - axis appropriately.
month # of deer
sept 38
oct 32
nov 26
dec 20
jan 15
feb 12

1. what is the independent variable?
2. what is the dependent variable?
3. what is an appropriate title?
4. what is the average number of deer per month?

b. graph the following information in a line graph. label and number the x and y - axis appropriately.

of days # of bacteria

1 4
2 16
3 40
4 80
5 100
6 200

1. what is the independent variable?

Explanation:

Step1: Identify independent variable for deer data

The month is the factor we change or control, so it's the independent variable.

Step2: Identify dependent variable for deer data

The number of deer changes based on the month, so it's the dependent variable.

Step3: Determine appropriate title for deer data

A title like "Number of Deer per Month" describes the data.

Step4: Calculate average number of deer per month

Sum the number of deer: $38 + 32+26 + 20+15+12=143$. Then divide by the number of months (6). So the average is $\frac{143}{6}\approx23.83$.

Step5: Identify independent variable for bacteria data

The number of days is the factor we change or control, so it's the independent variable.

Step6: Identify dependent variable for bacteria data

The number of bacteria changes based on the number of days, so it's the dependent variable.

Answer:

1. For deer data: Month
2. For deer data: Number of deer
3. For deer data: Number of Deer per Month
4. For deer data: $\approx23.83$
5. For bacteria data: Number of days
6. For bacteria data: Number of bacteria