Z Score Worksheet #1 – Math three



Z Score Intro Worksheet– Math threeName _______________________period ____1. Ms. Delany’s grades were as follows …. 493945606238466163374855533644573858594947425664566256585155456163626070Find the mean, μ, and standard deviation, σ, of the data.μ = ______________σ = ______________Construct a normal curve. Label it!Little Sid Vicious scored a 61 What was his z-score?Z-score = _________What percent of people scored better than Johnny based on his z score ? _____What percent of people scored worse than Johnny based on his z score ? _____Shaquille got a 51. What was his z-score?Z-score = _________What percent of people scored better than Sampson based on his z score ? ____What percent of people scored worse than Sampson based on his z score ? ____Cecelia had a z-score of 1.2. Approximately what was her score? _________Art had a z-score of - .5. Approximately what was his score? _________2. What does it mean to have a z-score of 0? __________________________3. What does it mean to have a z-score of 1? __________________________4.What does it mean to have a z-score of -2? __________________________5.A group of Jockeys were weighed and it was determined their mean weight was 112 lb with a standard deviation of 4.2 lbs. If Miguel Cabrarra weighed 118 lbs. What percentile was he in?If Juan Caston weighed 104 lbs, what percentile was he in?Oscar Salazar was the 50th percentile. What was his z-score? His weight?James Doyle was in the 74th percentile. What did he weigh?6.Mr. Octavian’s grades were as follows …. 79898580827877768087787573868477767675899782868476728678717580818382 Find the mean, μ, and standard deviation, σ, of the data.μ = ______________σ = ______________Construct a normal curve. Label it!Jim scored a 77 What was his z-score?Z-score = _________What percent of people scored better than Jim based on his z score ? ____What percent of people scored worse than Jim based on his z score ? ____Janice got a 86. What was her z-score?Z-score = _________What percent of people scored better than Janice based on her z score ? ____What percent of people scored worse than Janice on based on her z score ? ____Whitney had a z-score of 1.2. Approximately what was her score? ________Heath had a z-score of - .5. Approximately what was his score? _________ ................
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