What is the proportion of people surveyed rated

Reference no: EM1316137

Find the required probability for the normal distribution.

200 people were surveyed and asked to rate mayor Michael Bloombergs effectiveness towards education. The rate scale is 1 (lowest) to 10 (highest). Mayor Bloomberg's average rating was 7.50, with a standard deviation of 2

a) What is the proportion of people surveyed rated mayor Bloomberg from 5 to 7.5

b) What is the proportion of people surveyed rated mayor Bloomberg from 7.5 or above

c) What is the proportion of people surveyed rated mayor Bloomberg from 7.5 or below

Reference no: EM1316137

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