subject
Mathematics, 10.10.2019 23:40 christicamp4515

The mean height of a sample of 15-year-old boys is 175 centimeters, with a standard deviation of 10. for a sample of 15-year-old girls, the mean is 165 centimeters with a standard deviation of 8.
if 8 boys and 8 girls were sampled, the standard deviation of the difference is? ( round to the nearest hundredth).

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:40
What is the probability of rolling a single die greater than 4
Answers: 1
question
Mathematics, 21.06.2019 17:00
Find the area of a parallelogram with the given vertices. p(-2, -5), q(9, -5), r(1, 5), s(12, 5)
Answers: 1
question
Mathematics, 21.06.2019 17:30
Can someone me and do the problem plz so i can understand it more better
Answers: 2
question
Mathematics, 21.06.2019 19:00
Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1
Answers: 1
You know the right answer?
The mean height of a sample of 15-year-old boys is 175 centimeters, with a standard deviation of 10....
Questions
question
Mathematics, 19.07.2020 01:01
question
Mathematics, 19.07.2020 01:01
question
Mathematics, 19.07.2020 01:01
question
Mathematics, 19.07.2020 01:01
question
Social Studies, 19.07.2020 01:01