To select 10 students out of the class of 40 students, I select every 4th name from the roster beginning with the 2nd student. What type of sample is this?

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Q: X = 23 7 70 56 51 62 42 41 100 72 19 87 87 Σ(Χ2)-(Σ(Χ) 2/N)=

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Q: c. 31 to 49, at least d. 26 to 54, at least e. 22 to 58, at least 69 %0 % %

A: Given that  Mean = 40 , Sample standard deviations = 5

Q: Part E

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Q: State the properties of s normal distribution.

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Q: the standard deviation Marks Obtained 10-20 20-30 30-40 40-50 50-60 No. of Students 2 3 14 8 60-70 3…

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Q: 6.47 6.13 6.19 4.89 5.63 4.52 5.89 4.03 3.76 3.77 3.34 3.47 2.92 3.20

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Q: W. b) Let X₁, X₂X128G(2,4), by CLT find P(7 < X < 9) use (N(2)-0.977)

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Q: A new drug claims to be effective against flu 90% of the time. The drug is tested on 56 selected…

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Q: The state would like to evaluate the usefulness of a program to randomly test high school athletes…

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Q: x+y Suppose the joint probability distribution of X and Y is given by f(x,y) = for x = 5, 6, 7, 8; y…

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Q: Write the arithmetic sequence 10, 13, 16, 19, ... in the standard form: an

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