The given sample's confidence interval is 4.73 ± 0.1199, or from 4.61 to 4.85
<h3>What is the z score?</h3>
The z-score is a numerical assessment of a value's connection to the mean of a set of values, expressed in terms of standards from the mean, that is used in statistics.
Given data;
Mean = 4.73
Standard deviation = 0.865
Sample size = 200
interval = 95%
Confidence interval=?
95% of samples contain the population mean (μ) within the confidence interval of 4.73 ± 0.1199.
Hence, the sample's confidence interval is 4.73 ± 0.1199, from 4.61 to 4.85
To learn more about the Z score, refer to;
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Answer:
3rd option
Step-by-step explanation:
f(0) = 1/2×0 + 4 = 0 + 4 = 4
f(1) = 1/2×1 + 4 = 0.5 + 4 = 4.5
f(2) = 1/2×2 + 4 = 1 + 4 = 5
f(3) = 1/2×3 + 4 = 1.5 + 4 = 5.5
g(-1) = 3^-1 = 1/3
g(0) = 3^0 = 1
g(1) = 3^1 = 3
g(2) = 3^2 = 9
Answer:
y = -3x; the const. of prop. is -3.
Step-by-step explanation:
Recall: a proportional relationship satisfies y = kx, where k is the constant of proportionality.
In this particular example we see that (-3)(-2) = 6, (-3)(1) = -3, and (-3)(2) = -6.
This confirms adherence to the equation of a proportional relationship. The constant of proportionality here is -3.
The function governing the table is y = -3x.
To find the percentage you concert the fraction (ratio) 119/140 which will give you 0.85 You move the dot 2 spaces to the right and get 85.
Answer: 85%
