Which one of the following would most likely have a negative linear correlation coefficient? A. the value of a car compared to i
ts age B. the points scored by a basketball player compared to his minutes played C. the height of a woman compared to her age D. the hours of daylight in a city throughout The year
1 answer:
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Mean (the average):
is the mean
Median (the middle number when the numbers are ordered):
87
Mode (most repeated number(s)):
74 and 87
Range (difference between the highest and the lowest values):
115-67=48
Median (the middle number when the numbers are ordered):
87
Mode (most repeated number(s)):
74 and 87
Range (difference between the highest and the lowest values):
115-67=48
Answer:
C) 25%
Step-by-step explanation:
let salt be 's'
let water be 'w'
0.25 = 25%
Answer:
The 90% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample size is n = 64
The sample mean is
The standard deviation is
Given that the confidence interval is 90% then the level of significance is mathematically evaluated as
Next we obtain the critical value of from the normal distribution table , the value is
Generally the margin of error is mathematically represented as
=>
=>
The 90% confidence interval is mathematically represented as
=>
=>
Answer:
<em>y=-6</em>
Step-by-step explanation:
<u>Proportions</u>
A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:
y = kx
Where k is the constant of proportionality.
Substituting x=-3 y=9:
9 = k(-3)
Now the relationship is:
y = -3x
For x=2
y = -3(2) = -6