# Bstat chapter 2

**Flashcard maker :**Clarence Louder

variation.

right when the left tail is shorter than the right tail.

distribution for each class.

the better your frequency table will be.

___________.

displays the frequency of each group with quantitative data.

the \”trivial many\” causes of quality problems.

samples companies in the pharmaceutical industry and developed the following stem-and-leaf

samples companies in the pharmaceutical industry and developed the following stem-and-leaf

samples companies in the pharmaceutical industry and developed the following stem-and-leaf

If a frequency histogram were to be created using these data, how many classes would you create?

samples companies in the pharmaceutical industry and developed the following stem-and-leaf

What would be the class length that would be used in creating a frequency histogram?

samples companies in the pharmaceutical industry and developed the following stem-and-leaf

scheduled arrivals. The stem-and-leaf plot of the data for one year is below:

How many flights were used in this plo

scheduled arrivals. The stem-and-leaf plot of the data for one year is below:

In developing a histogram of these data, how many classes would be used?

scheduled arrivals. The stem-and-leaf plot of the data for one year is below:

What would be the class length for creating the frequency histogram?

frequency distribution shown below:

What would be the approximate shape of the relative frequency histogram?

frequency distribution shown below:

What is the relative frequency for the largest interval?

frequency distribution shown below:

What is the midpoint of the third class interval?

their instructor:

What proportion of the students who rated their instructor as very or somewhat effective received a B

or better in the class?

their instructor:

What proportion of all 550 students received less than a C?

the internet. The chart below shows the breakdown of the classification of the book

What percentage of the books purchased were either mystery or science fiction/fantasy?

the internet. The chart below shows the breakdown of the classification of the book

type:

What percentage of the books purchased were self-help books?

the internet. The chart below shows the breakdown of the classification of the book

type:

What percentages of books were in the top two categories?

class is a(n) _____.

bars.

many\” causes of quality problems.

distribution

display?

calculate the relative frequency for the shortest distance.

calculate the relative frequency for the distances over 24 miles

course.

Find the relative frequency for B grade

course.

If this was the distribution of 200 students, find the frequency for the highest two grades:

course.

If this was the distribution of 200 students, find the frequency of failures

course.

If we wish to depict these data using a pie chart, find how many degrees should be assigned to the

highest grade of A.

company that was in an ad running nationwide. The following results were

obtained:

What percentage of those surveyed were female and could not recall the company?

company that was in an ad running nationwide. The following results were

obtained:

What percentage of those surveyed could not correctly recall the company?

large screen televisions. The study recorded the type of television and the credit

account balance of the customer at the time of purchase. The following results were

obtained:

What percentage of purchases were Plasma televisions by customers with the smallest credit balances?

large screen televisions. The study recorded the type of television and the credit

account balance of the customer at the time of purchase. The following results were

obtained:

What percentage of the customers with the highest credit balances purchased an LCD television?

24, 56, 43, 35, 37, 27, 29, 44, 34, 28, 33, 28, 46, 31, 38, 41, 48, 38, 27, 29, 37, 33, 31, 40, 50

How many classes should be used in the construction of a histogram?

24, 56, 43, 35, 37, 27, 29, 44, 34, 28, 33, 28, 46, 31, 38, 41, 48, 38, 27, 29, 37, 33, 31, 40, 50

What is the shape of the distribution of the data?

21, 8, 17, 22, 19, 18, 19, 14, 17, 11, 6, 21, 25, 4, 19, 9, 12, 16, 16, 10, 28, 24, 6, 21, 20, 25, 5, 17, 8

How many classes should be used in the construction of a histogram?