An answer to this would be y=- 1 over 3 x
The probability of a screen being damaged is:
P(d)=3/13=0.23
Thus to get the probability that the first 10 sold were undamaged we use the binomial distribution formula:
P(x)=n!/((n-x)!x!)p^x(1-p)^(n-x)
from the question:
n=13, x=10, p=0.23
hence
P(x)=13!/((13-10)!10!)*0.23^(13-10)*(1-0.23)^(10)
simplifying the above we get:
P(x)=0.255
7/8a=42
a=42*8/7 (times both sides by 8/7 to cancel the fractions)
a=48
This is your answer ok x=2.5
Answer:
A = 2/5
Step-by-step explanation:
subtract 5/25 from both sides leaving A alone
