Consider the following frequency distribution

Question # 00585184 Posted By: rey_writer Updated on: 09/08/2017 04:35 AM Due on: 09/08/2017
Subject Statistics Topic General Statistics Tutorials:
Question
Dot Image
  1. 1. Consider the following frequency distribution:
    Class Interval
    10 > 20
    20 > 30
    30 > 40 Frequency
    15
    25
    10 What is the midpoint of the second class?
    10
    20
    25
    30
    40
    2. Consider the following frequency distribution: Class Interval
    10 > 20
    20 > 30
    30 > 40 Frequency
    15
    25
    10 What is the relative frequency of the second class?
    0.15
    0.30
    0.50
    0.20
    0.40
    3. A stem and leaf plot is constructed to represent the number of customer complaints received
    during different time intervals. Management wants to determine what percentage of the time
    they receive at least 20 but fewer than 30 calls. If the stem and leaf plot below depicts such a
    collection of data, what would you report to management? 1
    2
    3
    4
    5 0
    1
    2
    0
    1
    6.25%
    25%
    12.5%
    31.25%
    37.5% 1
    2
    2
    0
    1 1
    3 3
    3 6
    2 4. A frequency distribution was created and a portion of the data was lost. You are given that
    the lower class limit is 20 and the midpoint is 30. What is the upper class limit? 40
    39
    50
    25
    Cannot be determined from the information provided 5. A cumulative frequency distribution is constructed and the cumulative frequency for the third
    class is 100. Assuming the frequency for the next class is not empty (i.e. 0 observations in the
    class) The cumulative frequency for the next (non-empty) class will be __________ . less than 100
    equal to 100
    next class frequency minus 100
    100 minus the next class frequency
    100 us the next class frequency
    6. A frequency distribution is constructed to represent the price of cars sold by a local chain of
    dealerships. This information is to be used in planning for inventory levels for the coming
    quarter. When the distribution was presented prior to data collection, the validity of the
    distribution was brought into question. Which of the following represents the major flaw in
    the design of this distribution? Class
    Interval
    $18,000 >
    $21,000
    $21,000 >
    $25,000
    $24,000 >
    $27,000
    $28,000 >
    $31,000 7. Frequency There are too many
    intervals.
    The class widths are too
    small.
    Some numbers between
    18,000 and 30,000
    would fall into two
    different intervals.
    The first and the second interval overlap.
    There are too few
    intervals.
    1. A relative frequency distribution was created from 200 observations and is presented below.
    How many of the observations were greater than 200 but less than 250?
    Class Interval
    100 > 150
    150 > 200
    200 > 250
    250 > 300 2.
    40
    80
    100
    20
    160 Relative Frequency
    20%
    30%
    40%
    10%


Dot Image
Tutorials for this Question
  1. Tutorial # 00583245 Posted By: rey_writer Posted on: 09/08/2017 04:35 AM
    Puchased By: 3
    Tutorial Preview
    The solution of Consider the following frequency distribution...
    Attachments
    Explanatio1.docx (12.4 KB)
    Recent Feedback
    Rated By Feedback Comments Rated On
    M...36 Rating Informative tutorials 07/05/2018

Great! We have found the solution of this question!

Whatsapp Lisa