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How many moles of magnesium chloride should be taken
to prepare 400ml of a solution with a concentration of 0.2 mol / L?
R: 0.08 mol MgCl2
Calculate the amounts of solids Na2HPO4 and NaH2PO4 needed to prepare 0.40 M, 1.5L of phosphate buffer with pH of 7.0.
Prove that if 30 dictionaries in a library contains a total of 61,327 pages, then at least one of
the dictionaries must have at least 2045 pages.
solve for the proportion of the area of the following probability notations then sketch the normal curve shading the required region of each given notation
1. P (-2 < z <1)
2. P (z > 3)
3. P (z < -2)
4. P (z > -1.5)
5. P (z = -1)
2. Monthly payments of P10,000 for 4 years that will start 3 months from now
Find the least number of ways of choosing three different numbers from 1 to 10 so that all
choices have the same sum?
Write a program to print W pattern of N lines using a asterisk(*) character
NOTE : There is a space after each asterisk (*) character.
Input:
The first line is an integer N
Explanation:
For N=5
The output should be
* * * * * * * * *
* * * * * * * *
* * * * * *
* * * *
* *
First, read in an input value for variable numInput. Then, read numInput integers from input and output each integer on a newline after the string "input = ".
Ex: If the input is 2 30 40, the output is:
input = 30
input = 40What is regression analysis? Explain steps of performing regression
analysis in detail?
The following data shows the yearly sales (in million Rs.) of A2Zcorporation for the last nine years. Develop a regression model.
Year 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 ,2019
Sale 2.3, 5.3, 5.1, 3.5, 3.4, 2.7, 2.8, 4.1, 2.9
Explain the following:
• Probability Sampling and Non-Probability Sampling
• Systematic sampling and Cluster Sampling
• Advantages of Probability Sampling over Non-probability
Sampling
• Census vs. sample
• Primary and Secondary Data
