A high school drama teacher organizes a musical production. He wants to record the number of students involved in each part of t
1 answer:
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Answer:
The standard deviation of the data set is .
Step-by-step explanation:
The Standard Deviation is a measure of how spread out numbers are. Its symbol is σ (the greek letter sigma)
To find the standard deviation of the following data set
we use the following formula
Step 1: Find the mean .
The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:
Step 2: Create the below table.
Step 3: Find the sum of numbers in the last column to get.
Step 4: Calculate σ using the above formula.
X≥
solve the inequality by finding the roots and creating test intervals.
solve the inequality by finding the roots and creating test intervals.
Answer:
Step-by-step explanation:
The compound interest formula is equal to
where
A is the Final Investment Value (future value)
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above