The first choice gives you the same result. The factor of 5 can be removed to the outside of the summation symbol.

$5\sum\limits_{i=0}^{4}{\left(\dfrac{1}{3}\right)^{i}}$

8 0

3 years ago

What is the third quartile of the following data set<br><br> 24,20,35,39,28,42,25,29,44,21,37

strojnjashka [21]

First, arrange the data:

20, 21, 24, 25, 28, 29, 35, 37, 39, 42, 44

You can use the formula 3/4 multiplied by the number of data + 1 to find the position of the 3rd quartile.

so it's going to be 3/4 x (11+1) = 9th position

the number in 9th position is 39 so that's the 3rd quartile

5 0

3 years ago

Given​ f(x) = x2−2x+2​, find the​ value(s) for x such that ​f(x)=37.

Given f(x) = x2−2x+2, find the value(s) for x such that f(x)=37.