Asurvey was done of 902 students. the mean of their results was 26 and the standard deviation was 4. how many students responded above 35?

11 students out of 902 responded above 35

Step-by-step explanation:

Using z-score we can find what percentage of student will be above 35. Using this percentage we can calculate how many students out of 902 scored above 35.

Mean = u = 26

Standard deviation = s = 4

Target Value = x = 35

Formula for the z score is:

Using the values in this formula, we get:

Using the z table we can find the percentage of values that would be 2.25 standard deviations above the mean in a normal distribution. Using the z-table we get this value to be 0.0122 or 1.22%

Thus 1.22% of the values will be above 35.

1.22% of 902 is 11 (rounded to nearest whole number)

Thus 11 students out of 902 responded above 35

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