1.) What is the probability of rolling one six-sided die and obtaining any number but 6?

 

2.) By convention, when an observed experimental outcome has a probability of occurrence of less than 5% (<0.05), the experimental results are considered to be ________.By convention, when an observed experimental outcome has a probability of occurrence of less than 5% (<0.05), the experimental results are considered to be ________.?

A.) less than one standard deviation from the mean

B.) within normal expected range

C.) equal to the mean

D.) not significant

statistically significant and different from the expected outcome

 

3.) A normal distribution curve contains all the possible experimental outcomes in graph form. The tall central segment of the curve represents the outcomes with the highest probability of occurrence. The average outcome, represented by the center of the data distribution, is known as what?

 

Part A

p values for chi-square tests provide a quantitative measure of the probability that the results of another replicate experiment will deviate as much or more from expected results by chance. By convention, the chance hypothesis is rejected when the p value is less than __________.

p values for chi-square tests provide a quantitative measure of the probability that the results of another replicate experiment will deviate as much or more from expected results by chance. By convention, the chance hypothesis is rejected when the p value is less than __________.?

0.05

0.2

0.5

0.95

Part A

You would like to know whether the progeny of a pair of mated fruit flies are distributed among the resulting four phenotypic classes in a 1:1:1:1 ratio. You perform a chi-square test and obtain a p value of 0.04. Assuming you have done the test correctly, select the best interpretation of this result.

Hints

You would like to know whether the progeny of a pair of mated fruit flies are distributed among the resulting four phenotypic classes in a 1:1:1:1 ratio. You perform a chi-square test and obtain a p value of 0.04. Assuming you have done the test correctly, select the best interpretation of this result.The differences between the observed and expected counts are too large to be attributed to chance.

The traits being studied are on separate chromosomes.

Approximately 4% of the offspring lie outside the range of values expected for a 1:1:1:1 ratio.

The phenotypic ratio is actually 9:3:3:1

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