Statistics students in Oxnard College sampled 10 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (x) Cost(y) 628 107.64 455 71.15 988 144.44 501 75.13 764 126.32 840 130.2 583 102.79 546 82.98 807 129.91 917 142.21 A student calculates a linear model y=  __?__ x + __?__ . (Please show your answers to two decimal places) Use the model to estimate the cost when number of pages is 699.   Cost = $ __?__ (Please show your answer to 2 decimal places.)

Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The data are shown below: Number of Pages (x) Cost(y) 836 75.88 695 62.6 565 40.2 990 85.2 231 27.48 383 33.64 370 25.6 638 55.04 526 42.08 752 63.16 845 78.6 A student calculates a linear model using technology (Statistics Calculator or Computer) (Please show your answers to two decimal places) %3D Use the model to estimate the cost when number of pages is 833. Cost = $ (Use the linear model with yor rounded coefficients and then round your answer to 2 %3D decimal places.)

Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…

A statistics class has 136 students. The professor records how much money (in dollars) each student carries in his or her pocket during the first class. The histogram shows the data that were collected. Frequency 60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 110 The percentage of students having less than $10 in their pockets is closest to 30% 35% 70% 60% 50%

Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore, and recorded the number of pages in each textbook and its cost. The bivariate data is shown below, Number of Pages (x) Cost(y) 962 93.96 246 25.68 803 62.24 907 80.56 640 68.2 944 77.52 847 78.76 919 71.52 591 59.28 393 47.44 476 42.08 A student calculates a linear model (Please show your answers to two decimal places) Use the model above to estimate the cost when number of pages is 955 Cost - $ (Please show your answer to 2 decimal places.) Submit Question F5 F6 F7 F8 F9 F3

Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (x) Cost(y) 724 122.6 379 61.85 782 112.3 250 48.5 390 61.5 574 100.1 325 60.75 894 131.1 396 74.4 450 76.5 827 133.05 A student calculates a linear model (Please show your answers to two decimal places) y = Use the model to estimate the cost when number of pages is 992. x + Cost = $ (Please show your answer to 2 decimal places.)

What percent of the data fall between the 1st and 2rd quartiles?   1. 0%   2. 25%   3. 50%   4. 75%   5. 100%