It use for a sample mean not popluation mean
Answer:
0.1667
Step-by-step explanation:
Given that the Total number of people who are eligible to win cash prizes is 30.From the given table we notice that 5 people win $50 cash prize.
The probability of the first person winning the $50 prize is therefore :
Hence the probability of the first person winning the $50 prize is 0.1667
Answer:
No
Step-by-step explanation:
Using the given lengths if we say this is a right triangle then 8 would be length of hypotenuse
From the Pythagorean theorem
8^2 = 5^2 + 7^2
64 = 25 + 49
64 = 74 is not a correct equation so the triangle is not a right triangle for the given lengths
(–19, 55)
Replacing y in the second equation gives;
5x+2(-3x-2)=15
5x-6x-4=15
-x-4=15
-x=19
x=-19
y=-3(-19)-2
y=57-2
y=55
(-19, 55)