The P value is a quantitative expression of the probability that the results of another experiment of the same size and structure will deviate from expected results as much as or more than by chance. The greater the difference between observed and expected results of an experiment, __________. A)the lower the χ² value and the lower the P value B)the greater the χ² value and the greater the P value C)the greater the χ² value and the lower the P value D)the lower the χ² value and the greater the P value E)the greater the χ² value; but the P value is unaffected

Question

Quizplus · Accepted Answer

The χ² value measures the degree of difference between observed and expected results, with higher values indicating a greater difference. The P value is a measure of the probability of obtaining such a difference by chance, so as the difference between observed and expected results increases, the probability of obtaining such a result by chance decreases. Therefore, the greater the χ² value, the lower the P value.

The P Value Is a Quantitative Expression of the Probability