Chi Square AP Biology

What is the primary purpose of the Chi Square test in AP® Biology?

• To calculate the average of a data set

• To determine if observed data significantly differs from expected data

• To predict future biological outcomes

• To memorize biological terms

Tags

NGSS.HS-LS4-3

Which significance level

(column) do you look at when finding the critical value on a chi square chart in AP Bio?

• .50

• .10

• .05

• .001

What does the symbol '∑' represent in the Chi Square equation?

• Difference

• Sum

• Division

• Product

What does a Chi Square value greater than the critical value indicate?

• The null hypothesis is accepted

• The null hypothesis is rejected

• The experiment is invalid

• The data is inconclusive

What is the significance of a .05 critical value in the Chi Square test?

• There is a 50% chance the results are due to chance

• There is no chance the results are due to chance

• There is a 95% chance the results are due to chance

• There is a 5% chance the results are due to chance

What is the

χ² _calculated value for the following situation.

• 6.65

• 6.66

• 0.00991

• 1

In the formula for Chi Squared, the E stands for

• the sum

• the observed frequency

• The expected frequency

• the p value

What is the primary purpose of the Chi Square test in AP® Biology?

• To calculate the average of a data set

• To determine if observed data significantly differs from expected data

• To predict future biological outcomes

• To memorize biological terms

Tags

NGSS.HS-LS4-3

What does the symbol '∑' represent in the Chi Square equation?

• Difference

• Sum

• Division

• Product

What does a Chi Square value greater than the critical value indicate?

• The null hypothesis is accepted

• The null hypothesis is rejected

• The experiment is invalid

• The data is inconclusive