subject
Mathematics, 28.10.2020 15:30 shardonnay2160

The lengths of lumber a machine cuts are normally distributed with a mean of 102 inches and a standard deviation of 0.6 inch. (a) What is the probability that a randomly selected board cut by the machine has a length greater than 102.26 inches?
(b) A sample of 40 boards is randomly selected. What is the probability that their mean length is greater than 102.26 inches?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 20:00
How does the graph of g(x)=⌊x⌋−3 differ from the graph of f(x)=⌊x⌋? the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted right 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted up 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted down 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted left 3 units.
Answers: 1
question
Mathematics, 21.06.2019 23:30
Which of the following vectors are orthogonal to (2,1)? check all that apply
Answers: 1
question
Mathematics, 22.06.2019 01:00
X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis
Answers: 3
question
Mathematics, 22.06.2019 02:40
1- how are translations represented as a function? . . 2- what is the relationship between a translation and a rigid motion? answer my grade depends on it! you so much
Answers: 2
You know the right answer?
The lengths of lumber a machine cuts are normally distributed with a mean of 102 inches and a standa...
Questions
question
Mathematics, 18.03.2021 03:10
question
Mathematics, 18.03.2021 03:10
question
Chemistry, 18.03.2021 03:10
question
Mathematics, 18.03.2021 03:10
question
English, 18.03.2021 03:10
Questions on the website: 13722360