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The F distribution is a nonnegative, skewed-to-the-right distribution. Like the t distribution, it is a family of distributions based on sample size. Since the F distribution will be used in the context of a ratio of two variances, its family of distributions will be based on sample sizes for each sample.

df_n = n 1 = degrees of freedom for the sample in the numerator of the F ratio

df_d = n 1 = degrees of freedom for the sample in the denominator of the F ratio

1. Find P(F > 10.5, df_n = 8, df_d = 4) utilizing technology . (Round your answer to four decimal places.)

2. Without returning to the used technology or table, find P(F < 10.5, df_n = 8, df_d = 4). (Round your answer to four decimal places.)