Answer:
0.6384
Step-by-step explanation:
Given that:
10-mg Atorvastatin Placebo Headache 15 65 No headache 17 3
Hence the total of number of patients = 15 + 65 + 17 + 3 = 100 patients
The number of patients with headache = 15 + 65 = 80 patients
Also, C(n, x) is the number of combinations in which n items can be chosen taken x at a time it is given by the formula:

The the probability that if two different subjects they both had a headache = 
13 1/3 bags.
We start off with:
8 x 1 2/3
Convert the mixed number into an improper fraction:
8 x 5/3
Multiply:
40/3
Simplify:
13.333...
Convert decimal to fraction:
13 1/3
Step-by-step explanation:
3/4 + 1/2= 3+2/4= 5/4
Hope it helps you
Answer:
y = + 4
Step-by-step explanation:
y² - x = 7 ← substitute x = 9 into the equation
y² - 9 = 7 ( add 9 to both sides )
y² = 16 ( take square root of both sides )
y = ±
= ± 4
the positive value of y when x = 9 is + 4
<span>1/3 is less than 11/30
answer
</span><span>d. 1/3</span>