subject
Mathematics, 26.05.2021 01:00 Roshaan8039

In a study, 25,000 adults were randomly surveyed as to the number of grandchildren they have, X. The probability distribution is given below. Find the mean and the standard deviation of the probability distribution using a TI-83, TI-83 Plus, or TI-84 graphing calculator. Round the mean to one decimal place and the standard deviation to two decimal places.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 14:30
Is Ξ΄ pmr similar to Ξ΄ smn ? if so, which postulate or theorem proves these two triangles are similar?
Answers: 1
question
Mathematics, 21.06.2019 16:30
Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us
Answers: 1
question
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) βˆ’ sinh2(x) = 1 and (b) 1 βˆ’ tanh 2(x) = sech 2(x). solution (a) cosh2(x) βˆ’ sinh2(x) = ex + eβˆ’x 2 2 βˆ’ 2 = e2x + 2 + eβˆ’2x 4 βˆ’ = 4 = . (b) we start with the identity proved in part (a): cosh2(x) βˆ’ sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 βˆ’ sinh2(x) cosh2(x) = 1 or 1 βˆ’ tanh 2(x) = .
Answers: 3
question
Mathematics, 21.06.2019 20:00
Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0
Answers: 2
You know the right answer?
In a study, 25,000 adults were randomly surveyed as to the number of grandchildren they have, X. The...
Questions
question
Computers and Technology, 25.07.2019 15:00
Questions on the website: 13722362