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1. The mean and standard deviation of the grades of

1. The mean and standard deviation of the grades of a group of students who took an economic exam were 69 and 7, respectively.
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2. asked by Larry English
3. 662 views
Percentage grades in a large physics class follow a normal distribution with mean 58. It is known that 3% of students receive
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2. asked by Anonymous
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If the grades on a police entrance exam are normally distributed with a mean of 100 and a standard deviation of 15, what
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2. asked by Laura
3. 587 views
professor has found that the grades on a Statistics Exam are normally distributed with mean 72 and a standard deviation of 12.
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2. asked by George
3. 1,567 views
the mean and standard deviation of the grades of 500 students who took an maths exam were 69 and 7 respectively. if the grades
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2. asked by lisa
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the mean and standard deviation of the grades of 500 students who took an maths exam were 69 and 7 respectively. if the grades
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2. asked by lisa
3. 776 views
Suppose that, for a certain exam, a teacher grades on a curve. It is known that the grades follow a normal distribution with a
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2. asked by Anonymous
3. 1,216 views
Use a calculator to find the mean and standard deviation of the data. Round to the nearest tenth.6,7,19,7,18,7 A. mean = 9;
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2. asked by Veronika
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The grades on the last math exam had a mean of 88%. Assume the population of grades on math exams is known to be normally
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2. asked by Pewdiepie
3. 1,053 views
I'm stumped on this question.A teacher informs her history class that a test is very difficult, but the grades would be curved.
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2. asked by Norilyn
3. 1,053 views