2.According to the Data in Model 1, How Many Males Are 181Cm Or Above in Height?

Name______Date______Period___

1.According to the data in Model 1, how many females fall within the range 146—155 cm tall

2.According to the data in Model 1, how many males are 181cm or above in height?

3.Using the graph(s) in Model 1, determine the approximate average height of males and of females.

4.How many males are taller than 175 cm and approximately what percentage of the total is that?

5.Which graph(s)/chart(s) illustrate the answer to the previous question?

6. Which type of graph or chart in Model 1 shows a side by side comparison of data?

7. Which type of graph or chart in Model 1 shows trends in data across an entire data set?

8. Describe two trends in male and female height using the line graph.

Scientists invented a chemical called Zit-be-Gone that seems to work on severecases of facial acne. In order to test this new drug, the dentists devised an experimentinvolving 100 teenage girls. They divided the girls into 4 test groups

Group I = 25 girls had no Zit-be-Gone ointment

Group II = 25 girls had 5% Zit-be-Gone ointment

Group III = 35 girls had 10% Zit-be-Gone ointment

Group IV= 15 girls had 15% Zit-be-Gone ointment

Each group used the ointment 2 times per day when needed. Each group used it for one month. The results were as follows:

Group I:23 out of 25 still had severe acne

Group II: 15 out of 25 still had severe acne

Group III: 15 of 35 still had severe acne

Group IV: none of the 25 girls had severe acne, but 10 had a bad skin rash or irritation

1. What is the problem in this experiment?

2. What is the hypothesis?______

3. What are the control variable?

4. What group is the control group?

5. Which groups art the experimental groups?______

6.Which factors in this experiment could possibly lead to false or inaccurate results and therefore wrong conclusions?

7. What conclusions could be drawn from this experiment?

8. Make a chart that shows the results of the experiment

Name______Date______Period___

Analyzing and Interpreting Scientific Data

Name______Date______Period___

How can analyzing and interpreting scientific data allow scientists to make informed decisions?

Why?

During scientific investigations, scientists gather data and present it in the form of charts, tables or graphs. The data must be properly collected, analyzed, and interpreted to allow scientists to make informed decisions regarding the validity of their study and any further work that may be necessary to achieve their objectives. The ability to present and use data charts, tables, and graphs correctly is essential for good scientific practice and also prevents unnecessary or inappropriate work and misinterpretation of the data.

Name______Date______Period___

Model 1 — Graphs and Charts of Classroom Measurement Data

Pie ChartBar Graph

Percentage of Males andComparing Male and Female Average Values

Females by Height

Females > 175 cm

Name______Date______Period___

HeightHand Length

Line Graph

Distribution of Height in Males and Females

Knuckles

Name______Date______Period___

Height in centimeters

Male 'Female

Name______Date______Period___

Analyzing and Interpreting Scientific Data