Concept explainers
a.
Construct box plot of the variable price.
Identify whether there are outliers or not.
Find the
Find the first
Find the third quartile value.
b.
Construct box plot of the variable size.
Identify whether there are outliers or not.
Find the median price.
Find the first quartile value.
Find the third quartile value.
c.
Construct
Identify whether there is association between the two variables or not.
Identify whether association is direct or indirect.
Identify whether any point seems to be different from the others.
d.
Construct a
Find the most common cut grade.
Find the most common shape.
Find the most common combination of cut grade and shape.
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Chapter 4 Solutions
STAT. TECH. FOR BUSINESS AND ECO (LL)
- 5. Suppose that X is an integer valued random variable, and let mЄ N. Show that 8 11118 P(narrow_forward食食假 6. Show that I(AUB) = max{1{A}, I{B}} = I{A} + I{B} - I{A} I{B}; I(AB)= min{I{A}, I{B}} = I{A} I{B}; I{A A B} = I{A} + I{B}-21{A} I{B} = (I{A} - I{B})². -arrow_forward11. Suppose that the events (An, n ≥ 1) are independent. Show that the inclusion- exclusion formula reduces to P(UAL)-1-(1-P(Ak)). k=1 k=1arrow_forward12. (a) Explain tail events and the tail o-field. Give an example.arrow_forwardLet A, A1, A2,... be measurable sets. Then P(A)=1- P(A); • P(Ø) = 0; P(A1 UA2) ≤ P(A1) + P(A2); A1 C A2 P(A1) P(A2); P(UA) + P(n=14) = 1. Exercise 3.1 Prove these relations. ☐arrow_forward17. Suppose that X1, X2,..., Xn are random variables, such that E|xk| < ∞ for all k, and set Yn = max1arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_iosRecommended textbooks for you
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