Woman’s age is three years more than twice her sons age. The sum of the ages is 84. How old is the sun
2 answers:
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Answer:
The scatter diagram that contains the correlation coefficient closest to r = 1 is the first one shown in the attached images.
Step-by-step explanation:
The correlation coefficient "r" measures how much two variables x and y are related. When the variables are highly related, the value of r is closer to one and the points contained in the scatter diagrams are assimilated more and more to a line. When the value of r is positive the relation is crescent and therefore the slope of the line drawn by the points in the diagram has a positive slope
Therefore, to answer this question, one must search among the attached images for the dispersion diagram in which the points resemble a straight line with a positive slope.
The scatter diagram that meets the requirements mentioned is the first one that appears in the attached images
Answer:
(1) The total cost under Plan A is <u>$92</u> and the total cost under Plan B is <u>$515</u>.
(2) The total cost under Plan A is <u>$92</u> and the total cost under Plan B is <u>$1,030</u>.
Step-by-step explanation:
<u><em>The question is incomplete, so the complete question is below:</em></u>
Now, to find (1) total cost for each of the two plans. (2) Total cost under each of the two plans, if sister doubles her monthly usage to 3,500 minutes and sends 3,300 texts.
<h3>(1) </h3>As, the Plan A is for unlimited talk and text
Cost of the Plan A = $92.
<u><em>Now, to find the cost under Plan B:</em></u>
According to question:
Rate of call per minute is $0.20 and per text is $0.10.
Calls she uses currently is 1,750 minutes and text 1,650.
<u><em>So, to get the cost of Plan B:</em></u>
Thus, Plan B costs $515.
<h3>(2)</h3><u><em>Now, to get the total cost as, sister doubles her monthly usage to 3,500 minutes and sends 3,300 texts.</em></u>
As, the Plan A is same in both cases and is for unlimited text and calls.
So, cost of Plan A = $92.
As, the monthly usage is double.
Calls in minutes are 3,500.
Texts are 3,300.
<u><em>Now, to get the total cost under Plan B:</em></u>
Hence, the cost of Plan B = $1,030.
Therefore, (1) The total cost under Plan A is $92 and the total cost under Plan B is $515.
(2) The total cost under Plan A is $92 and the total cost under Plan B is $1,030.