subject
Mathematics, 12.08.2020 08:01 waterbug7571

The ages of rocks in an isolated area are known to be approximately normally distributed with a mean of 7 years and a standard deviation of 1.8 years. What percent of rocks are between 5.8 and 7.3 years old?

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 17:30
What is the number 321,000,000 in scientific notation? also what is the number? ?
Answers: 2
question
Mathematics, 21.06.2019 20:30
Ateam has p points. p = 3w + d w = wins d = draws a) a football team has 5 wins and 3 draws. how many points does the team have?
Answers: 1
question
Mathematics, 21.06.2019 20:30
1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?
Answers: 1
question
Mathematics, 21.06.2019 22:00
Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.
Answers: 2
You know the right answer?
The ages of rocks in an isolated area are known to be approximately normally distributed with a mean...
Questions