N N/X + 47. 3(x5) 5) -(x + 3) 48.-2(x7) 3(x +2) (5 2x)3x - 8) <7x + 2(5 - x) 51. 24 6x- 2(3x - 5) +2x 49. 4х 50. 3(х young adults with ents a 43% increase 1 + 2 2 52. ung adults with as- earnings of young 3 3 3 9 53. х + <\ und to the nearest 4 4 tatistics) x -5 54. 3 (2x + 6) twice the first sub- tegers is 16. Solve. utive odd integers the second by 54. 55. George Boros can pay his housekeeper $15 per weel his laundry, or he can have the laundromat do it at a 30 cents per pound for the first 10 pounds and 40 c each additional pound. Use an inequality to find the at which it is more economical to use the housekee the laundromat. day for a compact ver 100 miles driv- is $46.86, find how 56./In the Olympic gymnastics competition, Nana mus 65 to win the silver medal. Seven of ntific calculators is

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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.