7x B. Necklaces You are making necklaces using two different colors of stone beads. Stone A costs $.07 per bead and stone B costs $.05 per bead. You need 50 beads to complete a necklace. The equation c = c as a function of the number n of stone A beads used. Find the total cost if you use 0.07n + 0.05(50 n) gives the total cost 35 stone A beads.

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.