Answer:
Step-by-step explanation:
According to the question statement, the total sum of students is 221, which includes the students that ride on bus and the students that ride in a van.
The students that ride in a van are five, the students that ride on bus are 6 times s which is the product of the number of buses and the number of students that are on each bus.
Write all this information into an equation, this way:
Now, solve the equation for s to find the number of students that are on each bus.
There are 36 students on each bus.
Answer:
G. 4 x (-5)
Step-by-step explanation:
This gets you to -20 and you are subtracting 5 4 times. So this makes the most sense to me.
Hope it helps!
Solution: We are given that the grade point average of undergraduate students at one university have a normal distribution, with mean, standard deviation,
We have to find the percentage of the students whose grade point averages are no more than 3.36, i.e., P(x<3.36).
We need to first find the z-score.
Now we have to find . Using the empirical rule, we know that 97.5% data lies below 2 standard deviations above mean.
Therefore, using the empirical rule, 97.5% of the students have grade point averages that are no more than 3.36.