A gardener buys a package of seeds. Seventy-five percent of seeds of this type germinate. The gardener plants 90 seeds.  Find the probability that 60 or fewer of the seeds germinate

Find the z-score that has 64.1% of the distribution's area to its right. The z-score is. (Round to two decimal places as needed.)

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.)

Find the margin of error for the given values of c, s, and n. c=0.90, s = 3.5, n = 6 Click the icon to view the t-distribution table. The margin of error is (Round to three decimal places as needed.)

Please answer d and e.

For each probability and percentile problem, draw the picture.Suppose that the length of long distance phone calls, measured in minutes, is known to have an exponential distribution with the average length of a call equal to 12 minutes. Part (g) Find the probability that a phone call lasts less than 13 minutes. (Round your answer to four decimal places.) Part (h) Find the probability that a phone call lasts more than 13 minutes. (Round your answer to four decimal places.) Part (i) Find the probability that a phone call lasts between 9 and 13 minutes. (Round your answer to four decimal places.)

Find the margin of error for the given values of c, s, and n. c = 0.99, s = 3.1, n = 27 Click the icon to view the t-distribution table. The margin of error is (Round to one decimal place as needed.)

Using your favorite statistics software package, you generate a scatter plot which displays a linear form. You find a regression equation and the standard deviation for both variables. The standard deviation for x is 2.03, and the standard deviation for y is 5.2. The regression equation is reported as - 5.5 + 1.84x What fraction of the variation in y can be explained by the variation in the values of x? (Enter your answer as a decimal between 0 and 1.)