the weights of three children are in the proportion of 6 :5 :4. If the weight of the lightest child is 24kg, find the weights of
2 answers:
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Answer:
<em>Answer: 1/4</em>
Step-by-step explanation:
<u>Algebraic Operations</u>
The width of a rectangle is given as W=5x+3 and the length of the rectangle is given as L=20x+12.
It's required to determine the ratio of the width to the length, that is:
This fraction can be simplified if we factor the expression in the denominator. The LCF of 20x and 12 is 4, thus:
Now note we have the exact same expression up and down, thus simplifying:
Answer: 1/4
Answer:
The minimum sample size required to construct a 95% confidence interval for the population mean is 65.
Step-by-step explanation:
We are given the following in the question:
Population standard deviation,
We need to construct a 95% confidence interval such that the estimate is within 0.75 milligrams of the population mean.
Thus, the margin of error must me 0.75
Formula for margin of error:
Putting values, we get,
Thus, the minimum sample size required to construct a 95% confidence interval for the population mean is 65.
Explanation is in a file
bit.ly/3a8Nt8n