Draw Conclusion from Data

In an effort to try to convince her mother that she is too old to join the intermediate swim​ class, Mira, who is 13 years​ old, gathers data on the ages of a random sample of members of the current intermediate swim class. The results of the data collected by Mira are displayed in the dot plot shown.

• It is likely that she will be able to convince her mother.​ Mira's age is within the area where the data are clustered.

• It is likely that she will be able to convince her mother.​ Mira's age is to the left of the area where the data are clustered.

• It is unlikely that she will be able to convince her mother.​ Mira's age is within the area where the data are clustered.

• It is unlikely that she will be able to convince her mother.​ Mira's age is to the left of the area where the data are clustered.

The following dot plots show the amount of time it takes each​ person, in a random​ sample, to complete two similar problems. Make a comparative inference about the two problems.

• The problems are equally challenging.

• Problem 2 is more difficult because it took students longer on average.

• Problem 1 is more difficult because it took students longer on average.

The following shows the number of calls two radio shows get each day for a ten day period. The two shows are on at the same time. Make a comparative inference based on the median values.

• Show 1 usually receives more calls.

• Show 2 usually receives more calls.

• The shows usually receive equal numbers of calls.

• There is not enough data to draw an inference.

3 of 5 doctors surveyed by a pharmaceutical company prefer their new Brand X medicine compared to the other leading brand. Is this a valid inference?

• Yes they randomly chose doctors for the survey.

• No there is no evidence that they chose the doctors for the survey at random.

• Yes they chose doctors they knew would prefer their Brand X.

• No they randomly chose doctors for the survey.

Refers to drawing of conclusions or generalizations from the analysed data.

• Analysis of Data

• Collection of Data

• Interpretation of Data

• Non Parametric

A random survey of 7th graders finds that 7 out of 10 have more than 1 hour of screen time each day. If there are 110 7th graders in your school, how many would you expect to have more than 1 hour of screen time?

• 77

• 70

• 75

• 81

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.