questions help with this thanks for who gonna help me with t

questions

help with this ..thanks for who gonna help me with this homework ..

Solution

Q1)

a) Since we need to find the weight gain/loss for the dietary supplements, each data point is equally important and even the outliers play an important role. So, MEAN should be used as a measure of central tendency

b) This, information is more of qualitative in nature and helps in determining the most popular TV show amonst children. So, frequency of occurence is important. Hnece, MODE should be used as a measure of central tendency

c) Over here, we see that median and mode are close enough and also in good agreement with each other whereas the mean is too large. This is because mean is affected by the outliers in the data series. Thus, mean shouldn\'t be used. The best measure of central tendency in above example would be MEDIAN.

2)

Weighted average mean = w1m1 + w2m2 + w3m3

= (24/84) * 6.91 + (33/84)*7.72 + (27/84)*6.75

= 7.176

Hope this helps.