Let m be the mean of the three numbers. Then the least of the numbers is m-10 and the greatest is m+15. The middle of the three numbers is the median, 5. So 13[ ( m-10)+5+( m+15)]=m, which implies that m=10. Hence, the sum of the three numbers is 3(10)=30.反馈 ...
Question 10: A set of data consists of 20 numbers. The mean of the numbers is 8 and the standard deviation is 3.(a)Calculate∑x∂nd∑x^2 and(b) A sum of certain numbers is 72 with mean of 9 and the sum of the squares of these numbers of 800, is taken out from the set ...
Find the median of first 15 odd numbers. 4. Find the median of first 10 even numbers. 5. Find the median of first 50 whole numbersHint. First 50 whole numbers are 0, 1, 2, 3,___, 49 View Solution Find the median of the first 10 natural numbers. Is it equal to their mean? V...
Accounting: What the Numbers Mean, 10/eBook Preface
To solve the problem step by step, we will follow the mathematical principles of mean calculation.Step 1: Understand the given information We know that the mean of 20 numbers is 18. This means that the sum of these 20 numbers c
7. The mean of a set of numbers(m-4),m,$$ ( m + 2 ) $$),2m,(2m+3) is 10.(a) Calculate(i) the value of m.$$ m = 7 $$(ii) the standard deviation. 4.980(b) Each number in the set of dat a is multiplied by 3 and then added by 2. Calculate the varian...
百度试题 结果1 题目 20. The mean of a set of 7 numbers is 3.6 and the mean of a different set of 18 numbers is 5.1. Calculate the mean of the 25 numbers. 相关知识点: 试题来源: 解析 4.68 反馈 收藏
To solve the problem step by step, we need to find the value of 'x' given that the mean of the numbers is 68. Then, we will estimate the median of the numbers including 'x'.Step 1: Write down the formula for the mean. The mean
Find the mean of the following set of numbers: 5, 26, 9, 14, 49, 31, 109, 5. This is a straightforward question that simply asks you to calculate the arithmetic mean of a given data set. First,add up all the numbers in the data set(remember that you don’t need to arrange them...
We study the 1D quantum many-body dynamics with a screened Coulomb potential in the mean-field setting. Combining the quantum mean-field, semiclassical, and Debye length limits, we prove the global derivation of the 1D Vlasov-Poisson equation. We tackle the difficulties brought by the pure state...