MATH6200 Data Analysis (Midterm)

This course reviews and expands upon core topics in probability and statistics through the study and practice of data analysis.

MATH6200 Data Analysis

Question 1

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The quantification of data into information.

Select one:

Question 2

Complete
Mark 1.00 out of 1.00
Flag question

Question text

As of 2014,there are _______million of tweets a day.

Select one:

Question 3

Complete
Mark 1.00 out of 1.00
Flag question

Question text

What range of values lie between 3 standard deviations above and below the mean if the mean is 80 and the standard deviation is 3?
Select one:

Question 4

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The score NOT easily affected by extreme values.
Select one:

Question 5

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The major outcome of correlation.

Select one:

Question 6

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The following are elements in an analytic plan EXCEPT

Select one:

Question 7

Complete
Mark 1.00 out of 1.00
Flag question

Question text

Data is NOT information unless we add_________.

Select one:

Question 8

Complete
Mark 1.00 out of 1.00
Flag question

Question text

He is someone who asks interesting questions on formal and informal theory.

Select one:

Question 9

Complete
Mark 1.00 out of 1.00
Flag question

Question text

Which is NOT a value of r ?
Select one:

Question 10

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The number that occurs most frequently is called________.
Select one:

Question 11

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The creation of a data product contains 3 components  EXCEPT

Select one:

Question 12

Complete
Mark 1.00 out of 1.00
Flag question

Question text

What percent of data will lie within 2 standard deviation of the mean?
Select one:

Question 13

Complete
Mark 1.00 out of 1.00
Flag question

Question text

He coined the term  "data scientist"

Select one:

Question 14

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A survey of 100 consumers said that the price charged for a kilo of rice could be approximated by a normal distribution with a mean of 35 and a standard deviation of 4.How many of them lie between 27 and 43?
Select one:

Question 15

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A  vegetable distributor  knows that during the month of August ,the weights of tomatoes are normally distributed with a mean of 0.61 lb  and a standard deviation of 0.15 lb. What percent of the tomatoes weigh less than 0.71 lb?

Select one:

Question 16

Complete
Mark 1.00 out of 1.00
Flag question

Question text

In the equation of the regression line represented by Y= 1.24 X + 6.9 if X=2 then Y =?
Select one:

Question 17

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A score of 50 lies 2 standard deviations above a mean of 30.What is the value of the standard deviation?
Select one:

Question 18

Complete
Mark 1.00 out of 1.00
Flag question

Question text

Data involving two variables.
Select one:

Question 19

Complete
Mark 1.00 out of 1.00
Flag question

Question text

Example of a data product.

Select one:

Question 20

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A negative correlation exists when___________.
Select one:

Question 21

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The middle-most value in a ranked list of numbers.

Select one:

Question 22

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A  vegetable distributor  knows that during the month of August ,the weights of tomatoes are normally distributed with a mean of 0.61 lb  and a standard deviation of 0.15 lb. How many can be expected to weigh more than 0.31 lb in a shipment of 6000 tomatoes.

Select one:

Question 23

Complete
Mark 1.00 out of 1.00
Flag question

Question text

Which of the following is used as a method for Correlation?
Select one:

Question 24

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A positive z-score means that the score is
Select one:

Question 25

Complete
Mark 1.00 out of 1.00
Flag question

Question text

On an examination given to 1000 students, Jef’s score of 80 was higher than the score of 480 students who took the exam. What is the percentile for Jef’s score?
Select one:

Question 26

Complete
Mark 1.00 out of 1.00
Flag question

Question text

It expands available data enormously.

Select one:

Question 27

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A data having the same number of occurrence in scores is said to be

Select one:

Question 28

Complete
Mark 1.00 out of 1.00
Flag question

Question text

Which is NOT a correct correlation Coefficient?

Select one:

Question 29

Complete
Mark 1.00 out of 1.00
Flag question

Question text

If the standard deviation of a distribution is 3.5, the variance is
Select one:

Question 30

Complete
Mark 1.00 out of 1.00
Flag question

Question text

It partitions a ranked data into four equal groups.

Select one:

Question 31

Complete
Mark 0.00 out of 1.00
Remove flag

Question text

The value of X in the regression equation Y= 1.24 X + 6.9 if Y=13.1 is
Select one:

Question 32

Complete
Mark 1.00 out of 1.00
Flag question

Question text

It refers to the degree of relationship between two variables?
Select one:

Question 33

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A bell-shaped distribution that is symmetric about a vertical line?
Select one:

Question 34

Complete
Mark 1.00 out of 1.00
Flag question

Question text

Who said that "The future is not  google-able " ?

Select one:

Question 35

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The method of correlation used for ranked score is ________.
Select one:

Question 36

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The equation of the _______line predicts the value of Y given X.
Select one:

Question 37

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A graph that is used to indicate frequency distribution.

Select one:

Question 38

Complete
Mark 1.00 out of 1.00
Flag question

Question text

It list the percent of data in a distribution.

Select one:

Question 39

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A survey of 100 consumers said that the price charged for a kilo of rice could be approximated by a normal distribution with a mean of 35 and a standard deviation of 4.How many are less than 39?
Select one:

Question 40

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The area of the standard normal curve to the right of z=0.82 is _______.
Select one:

Question 41

Complete
Mark 1.00 out of 1.00
Flag question

Question text

If there are 103 scores the median is equal to the _____ranked score.
Select one:

Question 42

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A  vegetable distributor  knows that during the month of August ,the weights of tomatoes are normally distributed with a mean of 0.61 lb  and a standard deviation of 0.15 lb. How many can be expected to weigh between 0.31 to 0.91  in a shipment of 4500 tomatoes.

Select one:

Question 43

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The normal distribution with a mean of 0 and standard deviation of 1.
Select one:

Question 44

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A bell-shaped distribution that is symmetric about a vertical line.

Select one:

Question 45

Complete
Mark 1.00 out of 1.00
Flag question

Question text

The difference between the highest and lowest value.

Select one:

Question 46

Complete
Mark 1.00 out of 1.00
Flag question

Question text

A perfect positive correlation coefficient is equal to

Select one:

Question 47

Complete
Mark 1.00 out of 1.00
Flag question

Question text

What increases data volume?

Select one:

Question 48

Complete
Mark 1.00 out of 1.00
Flag question

Question text

According to Hilary Mason which is NOT a skill that a good data scientist must cultivate.

Select one:

Question 49

Complete
Mark 1.00 out of 1.00
Flag question

Question text

What is the value of the mean if a score of 110 is 3 standard deviation above the mean?
Select one:

Question 50

Complete
Mark 1.00 out of 1.00
Flag question

Question text

Which of the following is TRUE when a distribution is normal?
Select one: