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3 years ago

For the data shown in the scatter plot, which is the best estimate of r? -0.95, -0.55, 0.55, 0.95

1 answer:

6 0

From the data shown in the scater plots, the points are scattered apart which means that r is not close to 1.

Also the data points increase to the right which means that r is positive.

Therefore, the estimate for r in the data shown in the scatter plot is 0.55

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The mean height of women in a country (ages 20-29) is 64.3 inches. A random sample of 75 women in this age group is selected. W

siniylev [52]

Answer:

z(65) = (65-64.2)/[2.81/sqrt(60)] = 0.8/(0.3279)

Step-by-step explanation:

3 0

3 years ago

Which is the length of the hypotenuse, x, if (12,35,x) is a Pythagorean triple

Wittaler [7]

37 is the correct answer givenbthat 12 and 35 are the original baces but if not then the hypotenuse is 6.08

8 0

3 years ago

The manager of a grocery store wants to determine the average amount of money spent at his store as it compares to the average d

JulijaS [17]

For the manager's store

Population size: 15
Arithmetic mean (μ): 37.6
Standard deviation (σ): 11,056

For the competitor's store

Population size: 15
Arithmetic mean (μ): 48,533
Standard deviation (σ): 28,356

For the manager's store the average is a better representation of the data since it does not have Outlier points in the box diagram. Also the median is close to the average.

For the competition store the average of the data collected is not as good representation of the data since they are dispersed from the mean with a standard deviation of 28.35. It also presents Outliers points in the box diagram, such as 112 which is very far from the average

7 0

3 years ago

Paulo has won the lottery. He is offered a series of payments of $10,000 per year for 10 years. What is the present value of the

sergiy2304 [10]

The present value of the payments is $73,600.87.

Present value of a cash flow is the value of the cash flow today. This is determined by adding the discounted cash flows of the cash flows together.

Discounted year 1 cash flow: 10,000 / (1.06) = 9,433.96

Discounted year 2 cash flow: 10,000 / (1.06)^2 = 8,899.96

Discounted year 3 cash flow: 10,000 / (1.06)^3 = 8,296.19

Discounted year 4 cash flow: 10,000 / (1.06)^4 = 7,920.94

Discounted year 5 cash flow: 10,000 / (1.06)^5 = 7,472.58

Discounted year 6 cash flow: 10,000 / (1.06)^6 = 7,049.61

Discounted year 7 cash flow: 10,000 / (1.06)^7 = 6,650.57

Discounted year 8 cash flow: 10,000 / (1.06)^8= 6,274.12

Discounted year 9 cash flow: 10,000 / (1.06)^9 = 5,918.98

Discounted year 10 cash flow: 10,000 / (1.06)^10 = 5,583.95

The sum of the discounted cash flows = $73,600.87

A similar question was solved here: brainly.com/question/9641711?referrer=searchResults

4 0

3 years ago

(50 POINTS) (PLEASE ANSWER THE QUESTION, NOT JUST TRY AND TAKE MY POINTS, I NEED HELP ON THIS SO DO NOT ANSWER IF YOU DO NOT KNO

jarptica [38.1K]

Answer:

No, there is no proportional relationship

Step-by-step explanation:

<u>The proportional relationship is:</u>

y = kx, which is a special form of linear equation, with zero y-intercept

<u>In the given case we have:</u>

y = 4.5x + 10

This is a linear function but not proportional relationship because it has y-intercept, different than zero

8 0

3 years ago