7.4 Topic 4: Correlation and Regression 30. What does correlation do? Select the correct word to complete each sentence. (a) Correlation measures the strength of the relationship between two variables. (categorical/quantitative (b) Correlation measures strength (and/not) direction of the relationship. (linear/all) relationships. (increases/decreases/remains the same) when the units are converted (c) Correlation is appropriate for (d) Correlation from feet to inches. 31. A detailed study of the veined squid (Loligo forbesii) by Emam et al. showed several interesting linear relationships in body proportions. Consider the following related data sets. Data 1 Mantel Width: 2.5, 2.1, 2.6, 3, 3.5, 4, 4.4 Mantel Length: 0.4, 1.5, 3.7, 3.6, 4.3, 4.5, 4.9 Data 2 Mantel Width: 2.5, 2.1, 2.6, 3, 3.5, 4, 4.4 Fin Length: 2.3, 2.4, 3.2, 2.9, 3.8, 4.6, 4.3 (a) Find the correlation of each data set. (b) Is mantel length or fin length better for predicting mantel width? Explain. 32. Match the correlation with the plot in Figure 7.8. (a) -0.3796 (b) 0.3705 (d) -0.9564 (c) 0.9271 Figure 7.8: Matching Correlations Plot 2 Plot 1 10 2. 10 Plot 4 Plot 3 10 4. 8. -8 -2

Q: Can question d, e, and f be answered?

A: As per the question we have to find the example of the following graphs : Simple graph having 5…

Q: Match the following quadratic functions to their graphs. 2z? - 5z + 1 -2x + 5z + 1 21 + 5z +1

A:

Q: Find the number of ways in which two Americans, two British, one Chinese, one Dutch and one Egyptian…

A: Given that, two Americans, two British, one Chinese, one Dutch and one Egyptian.

Q: r²y dy) dr O a. 58 O b. 48 O c. О с. 42 O d. 49

A: To evaluate: ∫12∫346x2y dydx

Q: Compute each of the following: a. b. C. d. 0. (Simplify your answer.) a. b. (Simplify your answer.)…

A: In the given problem combination values should be calculated.

Q: Subtract. 253 a. 357 15 15 C. e. 357 417217 I7-172/7 317 117 b. d.

A:

Q: Quéstión 10 Determine the value of So xva? + Idx 2/3 No answer text provided. .609 O 1/3

A:

Q: The vehicle registration plates in a European country consists of 3 letters followed by 3 digits.…

A: Solution

Q: 6. 6. .a It.c O .d o ||

A: Thanks for the question :)And your upvote will be really appreciable ;)

Q: Match the following graph to its inverse. -5-4-3-2 5 3 ↑ M T + 1 2 3 4 5

A:

Q: ronny has saved 4,562 so far this year. last month he split his money equally into two piggy bank a…

A: Given: Ronny has saved 4,562 so far this year. last month he split his money equally into two piggy…

Q: 10 -3 A - 3 0. -12 0. -4 2. D 0. 1 %3D 4. 4日U0 234 O O 0 0

A:

Q: D Name a secant. E B.

A: Given that:

Q: whay about part d

A: Given:   Sample Size = n = 25Critical Value:              Degrees of freedom = n – 1 = 25 – 1 =…

Q: and question 8 thank you soo much.

A:

Q: ty. os 20 n 20

A:

Q: 4. Express the following in degrees: a. 5 3n b. 4 117 С. 15

A: Solution:-

Q: Question 81 a,b,c,d

A: We solve various concept about tangents.

Q: Cam and his sister want to share 9 cookies. Which statement is true? AEach child receives 5 cookies.…

A: Consider the given statement.

Q: %3D 2n a O V2 .b O .cO

A: Option (d) is correct.

Q: SUBJECT: 32Supg 2247 Let 38 Sypqrop noymal ZL4Z

A:

Q: 44. yy" + (y')² = 0

A:

Q: A1 0.8 a.) Find Ø A4 1 2 A2 АЗ 0.5 2. 1 1.2 1.5 2 2 1.2 1.8 0.4

A: Solution is here

Q: 40 O 12 O 16 18 O 14 30 ?

A: Consider the figure given below :

Q: QUESTION 4 -1 1 %3D O a. -5 O b. -1 O c. 4 O d. -4 O e. 5 QUESTION 5

A:

Q: Question 1 f(a)da 7 -2 3

A: The given figure is:

Q: Subtract. 36 225 a. 21 so C. d. e. 31132131161 51 14 b.

A:

Q: 9 383 R Submit Question

A:

Q: Compute xe" dx + x?y dy along the curve x 3t, y = t2, 0 < t < 1.

A:

Q: Verify.

A:

Q: B. C. E D Exs. 7-9

A: Obtuse angle: The obtuse angle is the smaller angle.It is more than 90° and less than 180°.

Q: 4. Evaluate: 46 = %3D

A: Given463

Q: Frad PH) 5-a

A:

Q: If A = 2j and B = 3k grandfather A.B

A:

Q: One question with parts ...

A: In the given case, the appropriate hypothesis is given by  H0: p = 0.5H1: p &gt; 0.5 where p is the…

Q: Question 1    Add   5/24  +   11/36

A: Example:-  Add  a + a=2a

Q: 1. Calculate a. (3-7)

A: We have to calculate the sum of given series.

Q: 6 Evaluate f S Suh

A:

Permutations and Combinations

If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.

Counting Theory

The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.