To compute the mean, you simply have to sum all the elments in the data set and the divide the sum by the number of elements:
To compute the variance, we first need to compute the distance of each element from the mean. To do so, we build a "parallel" dataset, given by the difference of every value and the mean:
Now we need those difference squared:
The variance is the mean of this new vector, so
Finally, the standard deviation is simply the square root of the variance, so you have
Answer:
$ 74.80
Step-by-step explanation:
The subtotal cost of the meal was $91.22 including tax.
The 18% tip is added for six or more.
The tip added should reduce the meal subtotal by 18 %
Reduce $91.22 by 18% to get ;
82/100 * 91.22 = $ 74.80
1 m = 1.5 ft
1 sec = 0.025 ft
1 hour = 90 ft
i am a mathematics teacher. if anything to ask please pm me
Answer:28%
Step-by-step explanation:
Answer:
total profit=$607.278
Step-by-step explanation:
company's profit in 1985= $535 million
company's profit in 1990=$570 million
growth rate = 
= 
= 6.54 %
profit in year 1995 will be = 
hence total profit= $570+$37.278
= $607.278
