Answer:
45.75
Step-by-step explanation:
183/4=45.75.
Answer:
The 90% confidence interval would be given by (63.330;81.070)
Step-by-step explanation:
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
Let put some notation
x=left arm , y = right arm
x: 175 169 182 146 144
y: 102 101 94 79 79
Since the Confidence is 0.90 or 90%, the value of a = 0.1 and a/2= 0.05we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.05,4)".And we see that ta/2= 2.13
The appropriate choice is ...
1) 4x-5y=-5 and 3x+10y=-20
Answer:
4(x+5)
Step-by-step explanation:
Answer:
The area of the rectangle is defined as
Area = height* width
Area = 20 u^2
This means that any multiplication between two numbers which results in the value 20, can be the either the width or the height.
For example, suppose the width and the height are integers.
The possible combination for the pair of values are
1 & 20
2 & 10
4 & 5
With either number being the height or the width
.
