<p>Sorry if this question may sound stupid to anyone, but is a calculator prohibited during the ap psych exam? I usually use a scientific calculator to solve the standard deviation questions; I know how to do it by hand, but it takes some time, which I don’t think I’ll have. Can I bring a calculator, or should I just leave it at home?</p>
<p>no calculators are allowed. i doubt they will have a standard deviation problem on the actual test since they know we cant use a calculator. best of luck on the exam!</p>
<p>hi~
my school does not provide an AP psychology class…so I study it by myself…
could I ask you a question about the standard deviation?
If the variation of a set of scores is 100,the standard deviation will be?
And the answer is 10…
I found the definition of the stand deviation is"measures a function of the average dispersion of numbers around the mean and is commonly used measure of variability"
But I still feel puzzled…</p>
<p>If they ask a question on that,it’ll be pretty easy to tell. For example:
1 1 1 4 7 7 7
1 4 4 4 4 4 7
1 2 3 4 5 6 7 </p>
<p>You can intuitively see that the 1st has the largest sd, and the 2nd the smallest</p>
<p>pumbaa, Variance is, by definition, the square of standard deviation(try looking up the definition on wikipedia instead of a dictionary)</p>
<p>I look up the definition in wiki and understand what is the sd and relationship between sd and variance.
THX!~><</p>