Because elderly people may have aifficulty standing to have their height moasured, a study looked at the reiationahip betwoen overal height and height to the knoe. Hore are data (n centimetera) for five eiderly men: Knee Height x 56.8 46.7 40.6 43.6 52.9 Height y 191.1 154.4 144.4 162.5 172.7 For this data, itis krown that Ex = 240.6, Ey = 825.1. = 11754.86, E = 137441.47 and Exy = 40148.43. What is the equation of the least-squares regression line for predicting height from knee height? ANSWER: ŷ =O Compute the linear correlation coefficient of these data, correct to four decimal places. ANSWER: Predict the mean height of an elderiy man with a knee height of 58 centimetera. ANSWER: Assume known that s, = 7.47858. Find a 99% confidence interval for the mean height of an elderly man with a knee height of 58 centimeters.

Q: ら. solve for x. ら 14

A: From the given figure,  x(7) = 5(14)

Q: 31 55 46

A: The given figure is a trapezoid.

Q: What is the contour interval of this map?

A:

Q: Simplify. 8. 1+ – CO

A: c+8c21+2c

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A: Read the expressions and tell whether they are <,>, or =

Q: 2. 4x-2y = -8 %3D 4x y = 2x + 4 %3D 241 -2

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Q: Simplify. 4

A: Power rule:   The power rules says that,

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A: Given information:

Q: A person start saving her money. Initially (day 0) she had $7 and was saving $2 per day. How much…

A: Given: At day 0, saving is $7. After that, saving is increased by $2 per day.

Q: N -50- 50 10/- 100- 10 -50. A 50

A: Please refer the attached image for complete solution.

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Q: Solve for x.

A: We have to solve the equation for x: 4.  x8=9125.  x-22=x+646.  x5-x=128  We will solve these…

Q: 1.

A: Positive correlation: A correlation in the same direction is called a positive correlation and in…

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Q: Explain an easy way to show that the proportions and are = not equivalent.

A: We have to show that the given proportions are not equivalent: x7=23 and x2=37. We know from…

Q: Find the value of a. 31 60° 55 46

A: Consider the given figure. The mid segment of the trapezoid is 231=a+46.

Q: briefly describe two ways to show that 8.7 > 8.624

A:

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A: I believe that the mistake lies in the rounding off the answers. We have to round the answers off to…

Q: 14 19

A: To determine the value of x.

Q: Discuss the difference between r and p. Choose the correct answers below. r represents the p…

A: Both are represents correlation.

Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.