130 adults with gum disease were asked the number of times per week they used to floss before theirdiagnoses. The (incomplete) results are shown below:# of times floss per weekFrequencyRelative FrequencyCumulative Frequency0.107714130.12713403150.1154554190.1462745.210.16156.130.1108220.1692130a. Complete the table (Use 4 decimal places when applicable)b. What is the cumulative relative frequency for flossing 2 times per week?Submit Question

a) The frequency of a class or observation is the number of values corresponding to it. It is given…

Answered: 130 adults with gum disease were asked…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The following data shows the height children with time: Age X, in (months) Height Y, in ( cm) 18 19 20 21 22 76.1 77.0 78.1 78.2 78.8 Find, the height in centimetres when the age is 20 years , correct to the nearest whole number Answer:
70 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Frequency Cumulative Frequency 0 5 0.0714 5 1 11 0.1571 16 2 11 0.1571 27 3 7 0.1 34 4 7 0.1 41 5 7 0.1 48 6 8 0.1143 7 70 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 2 times per week? %
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In a student survey, forty-one part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Please round your answer to 4 decimal places for the Relative Frequency if possible. # of Courses Frequency Relative Frequency Cumulative Frequency 1 15 0.3659 15 2 12 0.2927 ? 3 ? ? 41 What percent of students take exactly one courses ? %
70 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Frequency Cumulative Frequency 10 10 1 0.1 17 2 10 0.1429 27 8. 0.1143 35 4 7. 0.1 42 ? 0.1286 51 6 0.1 12 0.1714 70 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 2 times per week?
Consider the following partially filled frequency table: Value Frequency 0.5 1.0 2.9 Calculate the mean (to 2 d.p.). Cumulative Relative Frequency Frequency 0.2 39 100
Read the following questions carefully. Answer each item using the Zipgrade answer sheet. For numbers 1-5. Refer to the table at the right. class 1. In which class can you find the location of the 30th percentile? interval frequency cumulative (1) A. 21-25 46-50 6 B. 26-30 D. 36-40 41-45 11 C. 31-35 36-40 14 31-35 21 2. Which frequency will you A. 8 B. 10 use if you are to solve for P39? C. 21 D. 14 26-30 10 21-25 8 3. What is the 6th decile? A. 36.47 B. 36.57 C. 36.67 D. 36.77 4. What is the value of the 81st percentile? A. 42.18 B. 42.28 C. 42.38 D. 42.48 5. What is the value of the lower quartile? A. 30.5 B. 30.15 C. 30.25 D. 30.35 f CLASS INTERVAL 31-35 26-30 For numbers 6-12. Refer to the table at the right. The following data represent the difference in scores between the winning and losing teams in a sample of 35 college football games from 2004-2005. 21-25 16-20 11-15 6-10 6. Where is the location of the 4th decile? 1-5 A. 11th B. 12th C. 13th D. 14th 7. Which lower boundary…
I need the answer as soon as possible
A scale is known to be "low-calibrated" in that it measures an aluminum bar to be 4 grams lower than the actual weight. If ????μold is the mean of all possible measurements of the bar using the old calibration, and ????μnew is the mean of all possible measurements of the bar using a re-calibrated scale. It is desired that ????−????=4μnew−μold=4. Consider the test ?0:????−????=4H0:μnew−μold=4 vs. ?0:????−????≠4H0:μnew−μold≠4 Sample after calibration: mean is 95.8 , SD is 4.9 and sample size is 10 Sample before calibration: mean is 89.352 , SD is 4.2 and sample size is 62 We do not know population standard deviations. What is the p-value? (Hint: best to use software, or else the Desmos Calculator for the 2 sample T and Z test)
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