Answer:
see below
Explanation:
Mean is the average of a set of data or numbers. if the mean is 13, it implies that on average, the width of one iPad is 13cm.
a). Width of 12 iPads is 13cm.
Total width will be 12 x 13
= 156 cm
b). Total width of candles
mean of 8 candles is 12 cm
total width = 8 x 12
=96 cm
c). mean of iPads and candles
=width of iPads + width of candles divided by total of candles and iPads
= (156cm + 96cm) / (12 + 8)
=252 /20
=12.6 cm
Answer:
A. Matched Samples
Explanation:
Matched samples is a situation whereby participants are paired, sharing every other characteristics except the one under investigation. The idea behind this is to have more control over unwanted variables. In this case, the study is measuring two production methods and in order to control the unwanted variable and leave only the characteristic or variable under investigation which is the production method, the two method is carried out by the same workers each.
Answer:
B;A
Explanation:
You have the following data on three stocks: Stock Standard Deviation Beta A 20% 1.59 B 30% 1.71 C 25% 1.29 If you are a strict risk minimizer, you would choose Stock B if it is to be held in isolation and Stock A if it is to be held as part of a well-diversified portfolio.
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