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Goshia [24]
3 years ago
14

the students in high school enter school between 9:45am to 10am. the timing of the 400 students entering the school are normally

distributed. with a mean of 9:55 and a standard deviation of 1 minute. how many students enter before 9:55am​
Mathematics
1 answer:
bonufazy [111]3 years ago
4 0

Answer:64 students

Step-by-step explanation:

using the empirical rule, we know that 34% of a normal distribunion is below the mean but above 1 standard deviation. This means that 16% of the students enter before 9:55. Take 16% of 400 and you get the amount of students in before 9:55

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3 years ago
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Serjik [45]
A. Mean

Mean = Total / How many numbers there are

City A- Add all the numbers:

4 + 3.5 + 5 + 5.5 + 4 + 2 = 24

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City B- Mean:

Add all the numbers:

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30 / 6 = 5

Mean = 5 for City B

B. MAD(Don't know this part)

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Median = 5.25 for City A

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a. The mean for City A is 4. The median for City B is 5.
b. Don't know MAD
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Hope this helped☺☺



5 0
3 years ago
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