Find out the mean-variance
Given following frequency distribution, find out the mean, variance, and standard deviation. Please show all of your work.
Class Frequency
51-53 9
54-56 19
57-59 16
60-62 24
63-65 25
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Express the following: (i)Coordinates of vertices of major axis and coordinates of vertices of minor axis. (ii) State Coordinates of one Foci and state Eccentricity. 16x^2+25y^2=150y+175.
Construct both an ungrouped and grouped frequency distribution for data given below:
At normal atmospheric pressure a mixture of water and aniline is steam distilled, initially the temperature is 97.3C. At this temperature the partial pressure of water is 745mm Hg. Calculate the percentage by mass of aniline in distillate?
Determine coordinates of vertices of major axis? Find coordinates of vertices of minor axis? Find coordinates of one Foci? Determine the Eccentricity? 16x^2+25y^2=150y+175.
Determine the numbers of grams of sodium hydrogen carbonate, baking soda, are needed to totally neutralize 1.00L of 6.00 M sulfuric acid that has been spilled on the floor?
Find the mean, variance, and standard deviation. Please show all of your work.
Calculate this probability density for an electron in the 1s-, 2s-, and 3s- orbital of a hydrogenic atom. When an orbital other than s is considered then what happens to the probability density?
Rank the following data in increasing order and find out the positions and values of both the 22nd percentile and 65th percentile. Please show all of your work.
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