Answer:
r=0.96
Step-by-step explanation:
The Pearson product-moment correlation coefficient (PMCC) is a numerical value between -1 and 1 that shows the strength of the linear relationship between two variables.
Given the result of 10 hospital patients which were sampled below:
To determine the product moment correlation coefficient for the data, we follow the steps below:
Step 1: Find the following as it was done in the table below.
Step 2: Take the sum of every column to obtain:
Step 3: Use the following formula to find the PMCC.
<u>Interpretation</u>
- When r is closer to 1, there is a strong positive relationship between the variables.
- A value of 0 indicates that there is no relationship between the variables.
- Values close to -1 signal a strong negative relationship between the two variables.
Since r=0.96 which is closer to 1, we conclude that there is a strong relationship between the age and the high blood pressure related deaths in the state.
Check the picture below.
make sure your calculator is in Degree mode.
recall that there are 60 minutes in 1 degree.
Answer:
Kindly check explanation
Step-by-step explanation:
To construct confidence interval for difference in proportion ; the following conditions must be met :
1.) The selected samples must have been randomly chosen or selected from a larger population. This is essential in other to eliminate bias.
Each group of samples must be independently chosen. That is, the samples of bug customers chosen must be independent of the sample of small customers selected.
The population from which the samples are drawn must be considerably larger than the sample size. Sample size, n should be ≤ 10% of the population size.
p1 = 160 / 200 = 0.8 ; (1 - p1) = 0.2
p2 = 120 / 300 = 0.4 ; (1 - p2) = 0.6
(p1 - p2) ± Zcritical * sqrt[(p1(1 - p1) /n1) + (p2(1 - p2) / n2)]
Hey again!
Step 1. Simplify both sides... 6(2)(4)=3(4x+8) and 6(2)(4)=(3)(4x)+(3)(8)
48=12x+24
Step 2. Flip the entire equation... 12x+24=48
Step 3. Subtract 24 from both sides... 12x+24−24=48−24
12x=24
Step 4. Divide both sides by 12... 12x/12=24/12
X=2
Final answer: x=2
Hope this helped!
Answer:
to step this up you put put 299.50/374.99 = x/100. X stands for the unknown varibale. Now times 299.50 times 100 divided by 374.99= 79.9 percent
Step-by-step explanation: