The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $2000 and the standard deviation is $60. + 1820 1880 1940 2000 2060 2120 2180 Distribution of Prices C What is the approximate percentage of buyers who paid between $2000 and $2180? 49.87 0% What is the approximate percentage of buyers who paid between $1940 and $2060? 68 0*% What is the approximate percentage of buyers who paid between $2000 and $2120? 47.5 ☑0% What is the approximate percentage of buyers who paid less than $1880? % What is the approximate percentage of buyers who paid less than $1820? % What is the approximate percentage of buyers who paid between $1940 and $2000? 34 0%

A company has the following monthly sales for the past year.  Plot the data points on a line graph and describe the results. Month Sales 1 145 2 146 3 145 4 150 5 148 6 150 7 156 8 160 9 158 10 153 11 152 12 154

A random sample of ten professional athletes produced the following data.  The first row is the number of endorsements the athlete has and the second row is the amount of money made (in millions of dollars) by the athlete.    What is the slope of the line of best fit?  Round to 3 decimal places. Number of Endorsements  0  3  2  1  5  5  4  3  0  4  Profit (in Millions)  2  8  7  3  13  12  9  9  3  10

Given this data set below which consists of 49 data values answer the questions that follow. 110 120 150 160 180 190 210 220 240 250 350 360 470 490 550 560 660 700 750 760 830 930 270 280 330 380 420 460 520 520 530 580 590 650 710 730 740 780 790 810 840 860 870 940 820 920 950 990 1000 (a) Find the 32nd percentile: P32 = (b) Find the 79th percentile: P79 = (c) Find the percentile for the data value 520. Enter a number as your answer. For example, if the percentile is the 15th, then enter 15. (d) Find the percentile for the data value 950. Enter a number as your answer. For example, if the percentile is the 15th, then enter 15.

2.5.27 The data show the number of hours spent studying per day by a sample of 28 students. Use the box-and-whisker plot below to answer parts (a) through (c) below. 1 11 6. 1 9 5 1 1 8 4 3. 4 6. 7. 0. 9. 7 Click the icon to view the box-and-whisker plot. (a) About 75% of the students studied no more than how many hours per day? About 75% of the students studied no more than hours per day. (Type an integer or decimal rounded to one decimal place as needed.) 3.

Give typed full explanation

The monthly allowance in dollars for a random sample of high school students is displayed in the cumulative frequency graph below. Cumulative Percent 100 80 60 40 20 50 100 150 200 Monthly Allowance ($) Based on this graphical display, which of the following statements is justified? (A) A greater percentage of these students have monthly allowance between $50 and $75 than between $175 and $200. (B) The median monthly allowance for these students is about $100. (C) A greater percentage of these students have an allowance above $100 than below $100. (D) The minimum monthly allowance for these students is greater than $10. (E) The graph of the cumulative percent of monthly allowance for these students is skewed to the right.

A professor went to a website for rating professors and looked up the quality rating and also the "easiness" of the six full-time professors in one department. The ratings are 1 (lowest quality) to 5 (highest quality) and 1 (hardest) to 5 (easiest). The numbers given are averages for each professor. Assume the trend is linear, find the correlation, and comment on what it means. Calculate the correlation. r = (Round to three decimal places as needed.) Comment on the meaning of the correlation. Choose the correct interpretation below. OA. The professors that have high easiness scores tend to also have low quality scores.. OB. Being "easy" as a professor causes students to regard the professor as having a higher quality. OC. The professors that have high easiness scores tend to also have high quality scores. OD. Being "easy" as a professor causes students to regard the professor as having a lower quality. Quality Easiness D 4.7 3.7 4.7 3.1 4.2 3.5 4.2 2.6 3.9 1.9 3.5 1.8

The following graph shows the average grade point average for a particular college from 2004 until 2011. Average GPA 3.20 OA OC OD 3.15 3.10 3.05 3.00 2.95 2.90 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 Year Which one of the following statements is correct? A) Historically, the Average GPA of the college tends to decrease. B) There appears to be no relationship between Year and Average GPA. C) Year is the dependent variable in the graph. D) Average GPA is the dependent variable in the graph.

Construct the cumulative frequency distribution for the given data. Age (years) of Best Actress when award was won 20-29 30-39 40-49 50-59 60-69 70-79 80-89 Frequency 25 34 11 3 7 2 2 Age (years) of Best Actress when award was won Cumulative Frequency Less than 30 Less than 40 Less than 50 Less than 60 Less than 70 Less than 80 Less than 90