exam Maths Puzzle Numerical Ability

For a chi-square test involving a contingency table, suppose the null hypothesis is rejected. We conclude that the two variables are
A) linear.
B) curvilinear.
C) not related.
D) related.
E) none of the above.

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exam Other Question

how would i do this? A box of 6 coins (penny, nickel, dime or quarter) worth $0.67 is shaken. What is the probability that a nickel is drawn first and then a quarter? Assume no replacement and that all coins are equally likely.
Sandy has $3.75 in change. She has three more quarters than dimes but twice as many nickels as quarters. Express the given information as an algebraic expression and simplify. [you are not required to solve the problem]