ch 11 review

What is the interquartile range?

• 6

• 4

• 2

• 8

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

• 68%

• 95%

• 99.8%

• 50%

You have a mean of 56 and a standard deviation of 4.3. What is +2 standard deviations from the mean?

• 60.3

• 47.4

• 51.7

• 64.6

If this is the graph of data normally distributed with a mean of 30 and a standard deviation of 5, what label (number) is written at the blue circle?

• 40

• 35

• 45

• 50

Find the Upper Quartile.

5, 5, 9, 12,18, 22, 25,

• 22

• 18

• 25

• 12

Find the Lower Quartile.

5, 5, 9, 12,18, 22, 25,

• 18

• 12

• 9

• 5

Jane Goodall lived among wild chimpanzees intermittently for decades, studying their social and family systems while keeping her interaction with the chimpanzees to a minimum. Which research method is most appropriate?

• biased study

• census

• experiment

• observational study

Ghala wanted to know what the most popular book was in the whole school, so she asked everybody in 11th grade what their favorite book was. Which research method is most appropriate?

• Sample Survey

• Census

• Experiment

• Biased Sample

A researcher stood at a school parking lot entrance to see if the color of a car is related to the driver not wearing a seat belt.

Which research method is most appropriate?

• Observational Study

• Experiment

• Census

• Correlation

If I want to gather how all students are feeling about remote learning so far, which method would make the most sense?

• Experimental

• Naturalistic observation

• Case study

• Survey