<span>The mean of a set of data is 148.87 and its standard deviation is 68.29. Find the z score for a value of 490.19
the z-score is given by:
z=(x-</span>μ<span>)/</span>σ
plugging in the values in the expression we get:
z=(490.19-149.87)/68.29
z=340.32/68.29
z=4.9835
The answer to your question would be D.
there is no way to tell if any of the other options are true or not so the only possible choice would be D.
Hope this helps! :)
Answer:
Yes, it is a matched pairs design.
Step-by-step explanation:
Assuming that the twins used in the experiment are identical, this can be treated as a matched pairs designed. Although there are two individuals receiving different treatments, they are genetically similar enough for this to be considered a matched pairs design (One individual subjected to two different treatments).
The area is 60 and the lenght is 7 times longer than the width which is (w+7) and the formula is l×w=A, and the answer is
w(w+7)=60
