To solve for the confidence interval for the true average
percentage elongation, we use the z statistic. The formula for confidence
interval is given as:
Confidence interval = x ± z σ / sqrt (n)
where,
x = the sample mean = 8.63
σ = sample standard deviation = 0.79
n = number of samples = 56
From the standard distribution tables, the value of z at
95% confidence interval is:
z = 1.96
Therefore substituting the known values into the
equation:
Confidence interval = 8.63 ± (1.96) (0.79) / sqrt (56)
Confidence interval = 8.63 ± 0.207
Confidence interval = 8.42, 8.84
<span> </span>
The solution
is mathematically given as

- P(X=3)= 0.17
<h3>What is the
solution 
?</h3>
Generally, the equation for the Probability of P(X=3) is mathematically given as
b)

Therefore

P(X=3)= 0.17
c)


a)

Read more about cumulative probability distribution.
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Answer:
12 possible outcomes.
Sample space:

Step-by-step explanation:
The collection of all possible outcomes of a probability experiment forms a set that is known as the sample space.
1. There are four possible outcomes for the first wheel: F, A, I and R
2. There are three possible outcomes for the second wheel: 1, 2 and 3
So, the sample space is

Number 4: the slope is 3/4
number 5: y-intercept is 2
1450 is what would be in her bank account after 15 years