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Answer: 2
Explanation:
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
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Answer: 100
5
Step-by-step explanation:
a) The mean of a normal distribution is also the median. Half the population will have values above the mean. Half of 200 is 100, so ...
... 100 students will have grades above 70%.
b) 84% is 14% above the mean. Each 7% is 1 standard deviation, so 14% is 2 standard deviations above the mean. The empirical rule tells you 95% of the population is within 2 standard deviations of the mean, so about 5% of students (10 students) got grades higher than 84% or lower than 56%. The normal distribution is symmetrical, so we expect about 5 students in each range.
... about 5 students will have grades above 84%.
Answer:
I think the answer to the question should be C
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Answer:
50,75,and 100 there's supposed to be a 20 too but it's not there but oh well
