CHIDIST compares the chi-square value to be given for a random sample that is calculated from the sum of (observed value-expected value)^2/expected value for all values with the theoretical chi-square distribution and determines from this the probability of error for the hypothesis to be tested.
CHIDIST は、標本のカイ二乗値を理論上のカイ二乗分布の値と比較し、検定する仮説の危険率を返します。標本のカイ二乗値は、すべての値の (測定値-期待値)^2/期待値で求められます。