Steven wants to buy a $500 bicycle. steven has no money saved, but will be able to deposit $45 into a savings account when he receives his paycheck friday. however, before steven can buy the bike, he must give his sister $85 that he owes her. for how many weeks will steven need to deposit money into his saving account before he can pay back his sister and buy the bike?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.