Answer:
r=1/4
Step-by-step explanation:
y=1/4*x
2=1/4*8
1/4*8=2
Answer:
So about 95 percent of the observations lie between 480 and 520.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviations of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
The mean is 500 and the standard deviation is 10.
About 95 percent of the observations lie between what two values?
From the Empirical Rule, this is from 500 - 2*10 = 480 to 500 + 2*10 = 520.
So about 95 percent of the observations lie between 480 and 520.
Answer:
95xhsshsjsjeeiejjejsjsjsjwnnsnsmsmmwwnsnnsns
Seventy three hundreds one thousand two hundred and eighty
Answer:
Therefore 164 children and 89 adults swam at the public pool that day.
Step-by-step explanation:
Given that,
253 people used the public swimming pool.
The daily prices for children are $1.50 and for adults are $2.25.
Let the number of children be x.
Then number of adult is (253-x)
The total money collect on that day is ![=\$[(1.50\times x)+2.25(253-x)]](https://tex.z-dn.net/?f=%3D%5C%24%5B%281.50%5Ctimes%20x%29%2B2.25%28253-x%29%5D)
![=\$[1.50x+569.25-2.25x]](https://tex.z-dn.net/?f=%3D%5C%24%5B1.50x%2B569.25-2.25x%5D)
![=\$[569.25-0.75x]](https://tex.z-dn.net/?f=%3D%5C%24%5B569.25-0.75x%5D)
According to the problem,





Therefore 164 children and (253-164)=89 adults swam at the public pool that day.