subject
Mathematics, 10.08.2021 04:00 becky060604

Researchers report that children between the ages of 2 and 5 years watch an average of 25 hours of television per week. Assume that the variable time is distributed normally with a standard deviation of 2 hours. A random sample of 40 children between the ages of 2 and 5 was chosen. What is the probability that the average time of the selected group of 40 children between the ages of 2 and 5 watch more than 25.5 hours of television per week

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 14:50
Do 12/14 and 8/10 have the same value? explain your answer.
Answers: 1
question
Mathematics, 21.06.2019 17:00
The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle
Answers: 1
question
Mathematics, 21.06.2019 19:00
Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?
Answers: 1
question
Mathematics, 21.06.2019 20:30
Solve the triangle. a = 21°, c = 105°, c = 5
Answers: 2
You know the right answer?
Researchers report that children between the ages of 2 and 5 years watch an average of 25 hours of t...
Questions
question
Mathematics, 17.10.2020 09:01
question
Mathematics, 17.10.2020 09:01
question
Computers and Technology, 17.10.2020 09:01