AP BIO - Unit 0 Quiz

How is variability measured?

• mean, median, and mode

• mean, standard deviation, and standard error

• range, standard deviation, and standard error.

• mean only

Which of the following is true about range?

• It measures how close data points are to the mean
• A larger range indicates less variability

• A smaller range indicates less variability

• It is not related to variability

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

What does a low standard deviation indicate?

• The data is more spread out from the mean
• Factors other than the independent variable are likely causing changes
• The data is closer to the mean
• The mean is not a good representation of the data

Which of the following best describes the standard error of the mean (SEM)?

• It measures how well the mean of a sample represents the true mean of the population
• It indicates the range of data values
• It shows the spread of data around the mean
• It is the same as standard deviation

What does it mean if error bars do not overlap in a graph?

• The difference is significant
• The difference is not significant
• The standard deviation is low
• The standard error is high

What is the range for this data set?

• 19
• 123

• 61

• 52

Tags

NGSS.MS-PS3-1

What is the standard deviation for this data set?

• 7.4

• 14.8

• 6.1

• 1.9

Tags

NGSS.HS-LS3-3

What would be 2 standard deviations (95% of data) from the following data set?

• 61 +/- 22.2

• 61 +/- 7.4

• 4 +/- 7.4

• 61 +/- 14.8

What is the standard error for the following data set?

• 3.3

• 1.1
• 7.4

• 61

What would be the range for the standard error bars if the mean of the data is 71 and the standard error is 3?

• 74 and 68

• 77 and 65

• 80 and 62

• 74