If cos θ = -2/5 and tan θ > 0, what is the value of sin θ? Answer Choices: a) the negative square root of 21 b) the negative
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Answer:
The <u>sample proportion</u>, denoted by ^p, is given by the formula ^p= , where x is the number of individuals with a specified characteristic in a sample of n individuals.
Step-by-step explanation:
Sample proportion is used to determine sample mean, sample standard error and test the hypotheses about the population.
<em>sample mean</em> can be stated as p and <em>sample standard error</em> can be found using the equation where
- n is the sample size
- p is the sample proportion
And if n×p×(1-p)≥10, then sample is assumed large enough to assume normal distribution and apply statistical test.
8 is a whole number, so this will be the whole number part of our mixed number.
0.25 is a decimal, where 25 is in the HUNDREDths place, so we write 25 as a fraction over 100.
Simplify by dividing 25 to the numerator and denominator.
So our fraction is
0.55 is a decimal, where 55 is in the HUNDREDths place, so we write 55 as a fraction over 100.
Simplify by dividing 5 to the numerator and denominator.
So our fraction is
To convert this to a decimal, just divide 5 / 8
0.25 is a decimal, where 25 is in the HUNDREDths place, so we write 25 as a fraction over 100.
Simplify by dividing 25 to the numerator and denominator.
So our fraction is
0.55 is a decimal, where 55 is in the HUNDREDths place, so we write 55 as a fraction over 100.
Simplify by dividing 5 to the numerator and denominator.
So our fraction is
To convert this to a decimal, just divide 5 / 8