A fair die is rolled n times. Denote the largest number from all rolls as r, r=1,...,6. a. Write out the cumulative distribution function for r b. What is P(r = 3)?

a. Find X23,10. Draw the distribution and identify the x²-value in the distribution. b. Find F24,30,.05. Draw the distribution and identify the F-value in the distribution. c. Find t18,005. Draw the distribution and identify the t-value in the distribution.

need help with B, C, D

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The average final exam score for the statistics course is 74%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 12 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 51, 86, 77, 86, 66, 59, 66, 76, 55, 59, 57, 80 What can be concluded at the α = 0.10 level of significance?  For this study, we should use Select an answer t-test for a population mean z-test for a population proportion        H0:H0:  ? μ p  Select an answer = ≠ > <         H1:H1:  ? p μ  Select an answer = > < ≠     The test statistic ? t z  =  (please show your answer to 3 decimal places.) The p-value =  (Please show your answer to 4 decimal places.)

Find the margin of error for the given values of c, s, and n. c= 0.98, s = 4, n = 28 Click the icon to view the t-distribution table. The margin of error is (Round to one decimal place as needed.)

Use the Histogram tool to develop a frequency distribution and histogram for the number of months as a customer of the bank in the data below. Compute the relative and cumulative relative frequencies and use a line chart to construct an ogive.   Complete the frequency distribution for the months as a​ customer, and compute the relative and cumulative relative frequencies. ​(Type integers or decimals rounded to three decimal places as​ needed.) Bins Frequency Relative Frequency Cumulative Relative Frequency 10 enter your response here   enter your response here   enter your response here   20 enter your response here   enter your response here   enter your response here   30 enter your response here   enter your response here   enter your response here   40 enter your response here   enter your response here   enter your response here   50 enter your response here   enter your response here   enter your…

There are 100 students in a club. 20 are seniors. 12 arrive at December’s meeting at random. We want to predict the number of seniors that arrive. Describe the distribution and determine P(x=3).

Determine whether the approximate shape of the distribution in the histogram is symmetric, uniform, skewed left, skewed right, or none of these. 20- 10- 0- Choose the best answer below. O A. Skewed right B. Skewed left C. Uniform O D. Symmetric O E. None of these ni Click to select your answer.

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