The distributed property is one of the most frequently used properties in math. In general, this term refers to the distribution property of multiplication. The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.
Constant is something continuously occurring over a period of time.
Coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression.
Term is either a single number or variable, or numbers and variable multiplied together. Terms are separated by + or - signs.
Identity Property of Municipality states that any time you multiply a number by 1, the results, or product, is that original number.
Identity Property if Addition is always zero.
Like terms are terms whose variables are the same. In other words, terms that are "like"
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Answer:
0.07215 = 0.072 to 3 d.p.
Step-by-step explanation:
Central limit theorem explains that the sampling distribution obtained from this distribution will be approximately a normal distribution with
Mean = population mean
μₓ = μ = 9.8 minutes
Standard deviation of the distribution of sample means = σₓ = (σ/√n)
σ = 12 minutes
n = sample size = 30
σₓ = (12/√30) = 2.191
Probability that a random sample of 30 overtime periods would have a (sample) mean length of more than 13 minutes
Required probability = P(x > 13)
Since we've established that this distribution of sample means approximates a normal distribution
We first standardize 13 minutes.
The standardized score for any value is the value minus the mean then divided by the standard deviation.
z = (x - μ)/σ = (13 - 9.8)/2.191 = 1.46
Required probability
P(x > 13) = P(z > 1.46)
We'll use data from the normal probability table for these probabilities
P(x > 13) = P(z > 1.46) = 1 - P(z ≤ 1.46)
= 1 - 0.92785 = 0.07215
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I'm not very good with history but i think the first one is D and second is A , but I'm not sure sorry
1. B
2. A
3. B
4. A
Is your answer
