Data and Conclusions

Based only on the data table, what is MOST LIKELY a source of error?

• The students did not use the same starting water temperature for each material

• The students used 2 minute time intervals and should have used longer ones

• The students only tested 3 different exothermic reactions

• The students measured in degrees Celsius.

Which data below matches the data presented in the graph?

• Jan 4 cm

  Mar 5 cm

  May 14 cm

• Jan 4 cm

  Mar 5 cm

  May 13 cm

• Jan 5 cm

  Mar 6 cm

  May 14 cm

• Jan 4 cm

  Mar 5 cm

  May 5 cm

Joseph counted all of the different trees in the woods near his house. He made a graph showing his results. Which of the following conclusions can Joseph draw from his graph?

• There are more elms than oaks in the woods near his house.

• Cedars are the tallest trees in the woods near his house.

• There are 95 trees in the woods near his house.

• Maple trees are not able to grow in the woods near his house.

According to the bar graph which breed of dog is there more of in this kennel?

• beagle

• collie

• poodle

• bulldog

• Algae multiply most rapidly at 35^oC.

• Algae multiply most slowly at 20^oC.

• Algae multiply most rapidly at 20^oC.

• Algae multiply most slowly at 10^oC.

• The bacteria will be completely killed off if the antibiotics dosage is increased.

• The patient should have not taken the antibiotics again after day 5.

• The patient has become immune to the bacteria by day 10.

• The bacteria developed resistance to the antibiotics.

Examine the graph. Which variable is the dependent variable?

• population (in thousands)

• year

This data is normally distributed. What percent of the data is in the shaded region?

• 68%

• 95%

• 99.8%

• 50%

This data is normally distributed. What percent of the data is in the shaded region?

• 68%

• 95%

• 99.8%

• 50%

Inferential statistics involves...

• collection, presentation, and description of sample data

• the technique of interpreting the values resulting from the descriptive techniques and making decisions and drawing conclusions about the population

• attempting to provide incorrect information and provide misleading graphs

• using information, numbers, and graphics even when data can't be collected