Answer:
Mean = 35
Variance = 291.7
Step-by-step explanation:
Data provided in the question:
X : 1, 2, 3, 4, 5, 6
All the data are independent
Thus,
The mean for this case will be given as:
Mean, E[X] = 
or
E[X] = 
or
E[X] = 3.5
For 10 days, Mean = 3.5 × 10 = 35
And,
variance = E[X²] - ( E[X] )²
Now, for this case of independent value,
E[X²] = 
or
E[X²] = 
or
E[X²] = 
or
E[X²] = 15.167
Therefore,
variance = E[X²] - ( E[X] )²
or
variance = 15.167 - 3.5²
or
Variance = 2.917
For 10 days = Variance × Days²
= 2.917 × 10²
= 291.7
50-10 = 40. 40 divided by 6 = around 6/7. So about 6/7 weeks
Answer:
I think this would be....
14 miles im not sure
Step-by-step explanation:
It would be 1.3 less than the other.
The mode is 17 because it occurs most often.
There are 23 data points, so the 12th one is the median (middle). The median is 15.
The mean is 15.435 because it is the average. Add up all the ages, then divide by the number of people.