STAT 1000 Study Guide - Quiz Guide: Canada 2011 Census, Interquartile Range, Normal Distribution
3 Mar 2020
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Unit 5 practice questions: determine whether the values in bold are parameters or statistics: (a) according to the 2011 canadian census, the median income of households in canada is ,240. In a random sample of 500 canadian households, the median income was calculated to be ,179. In a random sample of 300 students, 14% were international students. 100 metres in a di erent style (backstroke, breaststroke, butter y and freestyle). From past experience, the four swimmers on team canada know that their 100 metre times follow normal distributions with the follow means and standard deviations (in seconds): 59. 5 seconds, swimmer 3 had a time of 51. 8 seconds and swimmer 4 had a time of. It is known that 20% of students receive grades higher than 77. 38. What is the mean grade in the class? (g) percentage grades in a large physics class follow a normal distribution with mean. It is known that 3% of students receive grades less than 45. 08.
