The expression 1000(1.1)t represents the value of a $1000 investment that earns 10% interest per year, compounded annually for t
2 answers:
Answer: $1464.1
Step-by-step explanation:
Given : The expression represents the value of a $1000 investment that earns 10% interest per year, compounded annually for t years.
To find the value of a $1000 investment at the end of 4 years, we need to put the value of t = 4 in the given expression , we get
Hence, the value of a $1000 investment at the end of 4 years = $1464.1
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The value of z-score for a score that is three standard deviations above the mean is 3.
In this question,
A z-score measures exactly how many standard deviations a data point is above or below the mean. It allows us to calculate the probability of a score occurring within our normal distribution and enables us to compare two scores that are from different normal distributions.
Let x be the score
let μ be the mean and
let σ be the standard deviations
Now, x = μ + 3σ
The formula of z-score is
⇒
⇒
⇒
Hence we can conclude that the value of z-score for a score that is three standard deviations above the mean is 3.
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