An Economics instructor assigns a class to investigate factors associated with the gross domestic product (GDP) of nations. Each student examines a different factor (such as life expectancy, literacy rate, etc.) for a few countries and reports to the class. Apparently, some of the classmates do not understand Statistics very well because several of their conclusions are incorrect. Explain the mistakes in comments a and b below. a) Explain the mistake in the statement "There was a very strong correlation of 1.22 between Life Expectancy and GDP." Choose the correct answer below. O A. A correlation that is close to 1 implies a very weak correlation. The correlation must be close to 10 for it to be interpreted as a very strong correlation. O B. A correlation cannot be greater than 1. OC. A correlation that is greater than 1 implies a weak correlation, not a strong correlation. O D. A correlation that is greater than 1 implies that the variables are not quantitative, so the correlation cannot be interpreted. b) Explain the mistake in the following statement. "The correlation between Literacy Rate and GDP was 0.83. This shows that countries wanting to increase their standard of living should invest heavily in education." Choose the correct answer below. O A. Assuming that the relation is linear, the strong correlation shows a relation between Literacy Rate and GDP, but this does not show causality. O B. The corelation indicates that an increase in the standard of living would result in an increase in the spending in education, but it cannot imply the reverse, which is that an increase in the spending in education would increase the standard of living. OC. Since GDP is a qualitative variable instead of a quantitative variable, no meaningful interpretation can be drawn from the correlation. O D. A correlation of 0.83 is too weak draw a meaning conclusion about the relation between Literacy Rate and GDP.

Q: How many even 3-digit numbers can be formed from the digits 1, 3, 4, 8, and 9 with no repetitions…

A: Out of the total 5 digits 1, 3, 4, 8 and 9 given, the even digits are 4 and 8. For the 3- digit…

Q: factors of 24 that add up to 10

A: factors of 24 that add up to 10

Q: 21 2. 6.

A:

Q: 4 2 G F -8 -4 -2 2 10 -2 -4 E 10 K 00

A: Formula for area is length multiply by breadth. Similarly for square its a^2 if side of square is…

Q: How many ordered triples of letters are there taken from the letters A, T, C, and G?

A: given letters: A,T,C and Gtotal number of letters = 4

Q: Find L{1}ℒ{1}.

A:

Q: b. N(0)

A: Given,  r→t=sint, t, cost                   ...1

Q: 4. Determine (16-912) dt c4

A: We will solve the problem.

Q: 7 items chosen 5 at a time

A:

Q: 1. O O O O lim (In(x))* ? 5.

A: Consider the given expression. y=limx→0+lnxxx Take ln on both sides of the equation.…

Q: (5V3)2

A: Explanation of the solution is given below...

Q: 22n+1 3n+1 2.

A:

Q: expand (a-b)7

A: The solution is given in the next step.

Q: Prove that the number of partitions of n into at most k parts is equal to that of partitions of n +…

A: given , number of partitions of n into k parts  we have to prove that , partitions of number n + k…

Q: 16 2/5- 8 4/9

A:

Q: 20/5+5+2*8

A: Consider the given expression

Q: ne binomial:

A:

Q: 6 2/5 ÷ 4

A: Given query is to solve the expression.

Q: 42. The term that does not contain x in the expansion of 8x +

A:

Q: Expand (a −b)4

A:

Q: -3 -10

A: The given equation is:  -3   2÷-10    7

Q: There are 1/8 blue balls, 1/4 green balls, 1/12 red balls and there are 26 white balls. How many…

A:

Q: 1/5 + 1/10 + 1/15

A: Sum of numbers

Q: 9 5/12 - 3 2/3 =

A: Case 1: Let the given number be in mixed fraction notation.

Q: expansion of (1-2m)“

A:

Q: 6 3/20 - 6 3/8

A:

Q: W 4. What is the value of the 4th term of the expansion (a + b)"? O a5 O 5a*b O 10a²63 10a b?

A:

Q: 5. Find the coefficient of a¹¹b4 in the expansion of (a + b)¹5.

A:

Q: Compute the indicated product.   -1 3   9 2 0   3 9 3

A:

Q: 5 2/5+ n= 75/6

A: Given query is to find the value of n.

Q: 8-12 (²

A: -83

Q: 4 1/2 +6 1/5=

A: We have

Q: 土4 7

A:

Q: 22 7/8 - 7=

A: Given,

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.