;Question-1

The following table provides measurements from a scientific experiment.

sample	number	density	(X)	velocity	(Y)
1	2.8	1.5
2	8.5	7.7
3	1	3.6
	9.5	5.1
5	7.5	8.7

To measure the correlation between density and velocity, we should use the

1. Spearman correlationcoefficient
2. Pearson correlationcoefficient

Question 2:

The following table provides measurements from a scientific experiment.

sample	number	age	(X)	ieght	(Y)
1	3	2
	3	2
3	5	5
	6	7
	10	8
	10	10

1. To determine the correlation between age and weight, what quantity should weuse?
   1. The Spearman correlationcoefficient
   2. The Pearson correlationcoefficient
2. WhatisN?
3. Calculate CA
4. Calculate Z'V
5. Calculate Z(A ²)
6. CalculateZ'(V2)
7. What is the correlation coefficient for the abovedata?

Question 3:

Consider the following data.

Participant	Rankings	of	Observer	A	(X)		Rankings	of	Observer	B	(Y)
1	4	I	'
	5			2
3	1
3
5	6
6	2

1. What correlation coefficient should weuse?
   1. Spearman correlationcoefficient
   2. Pearson correlationcoefficient
2. What isW?
3. CalculateC(D2)
4. What is the correlation coefficient for the abovedata __________

Answer required with detailed explanation...