Answer:
-21
Step-by-step explanation:
If the equation of the line is
then is the slope of the line and is the y-intercept of the line.
In your case, the equation of the line is
So, the slope of this line is and the y-intercept is
We will use the Binomial probability formula to find the answer
The formula is given by ⁿCₓ (p)ˣ (1-p)ⁿ-ˣ
We have
n, the number of trial = 16
x, the sample we aim to try = 7
p, the probability of success = 0.5
Substitute these values into the formula
P(7) = ¹⁶C₇ (0.5)⁷ (1-0.5)¹⁶⁻⁷
P(7) = 0.1746 (rounded to four decimal places)
Multiply the three numbers.
Answer:
Step-by-step explanation:
For this case we can define the random variable of interest as: "The nicotine content in a single cigarette " and for this case we know the following parameters:
And for this case we select a sample size of n =100 and we want to find the following probability:
And for this case we can use the z score formula given by:
And replacing we got:
And we can find the required probability with the normal standard table and we got: