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Quant Calci

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Submitted By gshetty5
Words 250
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1. Calculating mean, std dev and variance of a single variable data set

Calculate the population variance and standard deviation for the data set:

Steps a. 2nd 7 – Invoke the Data function b. 2nd CE|C – Invoke the Clear work function c. Enter the 5 values 1. X01 = 30 + ENTER 2. Down arrow 3. Y01 =1 (all y’s to be 1) + ENTER 4. X02 = 12 and so on. 5. After Y05 = 1 + ENTER d. 2nd 8 – Invoke the Stat function e. If you see LIN, press 2nd + ENTER multiple times till you see 1-V (1 variable) f. Press down arrow key g. N =5 which is the sample size h. X bar = 22 which is mean. -> one of the answers that we require i. S x = 6.67 which is sample std dev j. Sigma x = 5.96 which is pop std dev -> one of the answers that we require. k. Square of above = 35.6 which is pop variance - > one of the answers that we require
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2. Calculating the Expected value using probability weights

Using calci - Same as #1:
Steps
a. Enter the probabilities as y values in percentage i.e. 10, 20, 30 and 40 b. Enter the EPS as X values c. 2nd Stat mode should remain 1-V d. Press down arrow e. N = 100 indicating sum of probabilities is correctly entered as 100% f. X bar = expected value of EPS = 1.28 g. -------------------------------------------------
Sigma x = standard deviation of EPS =

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