STANDARD DEVIATION ST ERROR CHI SQUARE QUIZ AP BIO - update

What is the mean of this data set?
Set: 10, 19, 38, 50, 51

• 38.5

• 5

• 168

• 33.6

What does the Σ symbol mean?

• Add up all the numbers you just calculated.

• Calcluate the standard error of the mean.

• Take the square root of the number.

• Square all the numbers you just calculated.

In this data set, n = _____.
Set : 9, 21, 26, 39, 51

• 5

• 26

• 146

• 29

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-3

Four data sets are shown below.
Set 1: {27, 34, 38, 50, 51}
Set 2: {5, 21, 26, 39, 51}
Set 3: {18, 38, 50, 50, 51}
Set 4: {5, 28, 28, 28, 30}
Which data set has the largest standard deviation?

NOTE: Hey, crazy people. Work smarter, not harder. You do NOT have to calculate standard deviation in order to answer this question.

• Set 1
• Set 2
• Set 3
• Set 4

The mean of this data is 18.8. What is the standard deviation of the data?

• 38.76

• 9.69

• 04

• 3.1

The sunflower data has a standard deviation of 7.6. What is the standard error?

• 1.5

• 3.1

• 3.4

• 36.3

Tags

NGSS.HS-LS3-3

Which of the following statements is true pertaining to the graph given?

• There are 43.5 million Cockatoo

• There is a statistically signficant difference between the Cassowary and Cockatoo population.

• There is no statistically significant difference between the Cockatoo and Rainbow Pitta populations.

• Rainbow Pitta have the most accurate population measurement.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

When error bars overlap, there ________ between the two data sets.

• IS a statistically significant difference

• is NOT a statistically significant difference

Tags

NGSS.HS-LS2-2

Observe the two bars in trial 2. How would you describe this data?

• There IS a statistically significant difference between the two samples in trial 2.

• There is NO statistically significant difference between the two samples in trial 2.

Tags

NGSS.HS-PS4-3