Mathematics, 15.07.2021 23:20 maddiemccarter3892
Exam grades: Scores on a statistics final in a large class were normally distributed with a mean of 71 and a standard deviation of 8. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least two decimals. (a) Find the 47th percentile of the scores. (b) Find the 65th percentile of the scores. (c) The instructor wants to give an A to the students whose scores were in the top 12% of the class. What is the minimum score needed to get an A
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 18:20
Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.
Answers: 1
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 20:30
The function show two sisters' savings account and the rate at which they plan to deposit money
Answers: 3
Mathematics, 21.06.2019 20:30
Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14
Answers: 3
You know the right answer?
Exam grades: Scores on a statistics final in a large class were normally distributed with a mean of...
Questions
Physics, 18.03.2020 18:16
Computers and Technology, 18.03.2020 18:16
Computers and Technology, 18.03.2020 18:16
English, 18.03.2020 18:17
Social Studies, 18.03.2020 18:17
Mathematics, 18.03.2020 18:17
Mathematics, 18.03.2020 18:17
History, 18.03.2020 18:17
