1only answer c

Tree heights: Cherry trees in a certain orchard have heights that are normally distributed with mean u: 119 inches and standard deviation 6: 17 inches. Use the Excel spreadsheet to answer the following. Round the answers to at least four decimal places. Part10f3 a (a) What proportion of trees are more than 130 inches tall? The proportion of trees that are more than 130 inches tall is, 0.2588 '. Part20f3 a (b) What proportion of trees are less than 90 inches tall? The proportion of trees that are less than 90 inches tall is , 0.0440 '. Part:2/3 wn3w3 (c) What is the probability that a randomly chosen tree is between 95 and 105 inches tall? Tree heights: Cherry trees in a certain orchard have heights that are normally distributed with mean u: 119 inches and standard deviation 6= 17 inches. Use the Excel spreadsheet to answer the following. Round the answers to at least four decimal places. Part 1 of3 (a) What proportion of trees are more than 130 inches tall? The proportion of trees that are more than 130 inches tall is' 0.2588 '. Part 2 of3 (b) What proportion of trees are less than 90 inches tall? The proportion of trees that are less than 90 inches tall is ' 0.0440 '. Part:2/3 Part 3 of3 (c) What is the probability that a randomly chosen tree is between 95 and 105 inches tall? Google It: According to a recent report, 0 7 70 01 Internet searches in a particular month used the Google search engine. Assume that a sample 01 25 searches Is studied. Round the answers to at least four decimal places. Part 1 of 4 (a) What is the probability that exactly 20 of them used Google? The probability that exactly 20 of them used Google is 0.0691 Part 2 of 4 (b) What is the probability that 15 or fewer used Google? The probability that 15 or fewer used Google is 0.2919 Part: 2 / 4 Part 3 of 4 (c) What is the probability that more than 20 of them used Google?College bound: A national college researcher reported that 66% of students who graduated from high school in 2012 enrolled in college. Twenty eight high school graduates are sampled. Round the answers to four decimal places. Part10f4 a (a) What is the probability that exactly 16 of them enroll in college? The probability that exactly 16 of them enroll in college is1 0.0941 1. Part20f4 a (b) What is the probability that more than 15 enroll in college? The probability that more than 15 enroll in college is 1 0.8815 1. Part: 2/4 Part3of4 (c) What is the probability that fewer than 10 enroll in college? Dirty air: The federal government has enacted maximum allowable standards for air pollutants such as ozone. Let A be the number of days per year that the level of air pollution exceeds the standard in a certain city. The probability distribution of X is given by X 0 1 2 3 4 P(x) 0.34 0.39 0.19 0.05 0.03 Send data to Excel(c) Find the probability that the standard is exceeded on at least two days. The probability that the standard is exceeded on at least two days is i i. Paving stones: 175 paving stones were examined for cracks, and 18 were found to be cracked. The same 175 stones were examined for discoloration, and 19 were found to be discolored. A total of 7 stones were both cracked and discolored. One of the 175 stones is selected at random. Round all answers to four decimal places. Part1 0f4 a (a) Find the probability that it is cracked. The probability that it is cracked is 1 0.1029 1. Part20f4 a (b) Find the probability that it is discolored. The probability that it is discolored is 1 0.1086 1. Part:2/4 Part 3 of4 (c) Find the probability that it is not cracked