What is the minimum score you would need to receive this award? The minimum score needed to receive the award is 644 dhe Part: 1/2 Part 2 of 2 (b) The bottom 4.5% of students must go to summer school. Part 1 of 2 DA (a) The top 7% of students receive $500. Round the final answers to the nearest whole number and intermediate -value calculations to 2 decimal places. Y High School Competency Test A mandatory competency test for high school sophomores has a normal distribution with a mean of 495 and a standard deviation of 101. The normal probability table in most books gives the area to the left. The Standard Normal Distribution Table and enter the Pe=<-3.06) - left or right, while changing the standard deviation stretches or constricts the curve. For example, the left half of the curve is 50, or. The total area under a standard normal distribution curve is 100 (that’s 1 as a decimal). Use The Standard Normal Distribution Table and enter the answer to 2 decimal places.įind the probability using the normal distribution: P(:<-3.06). Questions about standard normal distribution probability can look alarming but the key to solving them is understanding what the area under a standard normal curve represents. Since the total area under the curve is 1 and the area of the region to the left of 1.60 is (from the table) 0.9452, the area of the region to the right of 1.60. Find the value to the left of the mean so that 55.96% of the area under the distribution curve les to the right of it.
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