1. In 1990 Central College's marching band had 50 women and 40 men as members; in 2010 the Central band had 60 women and 50 men. a. Find the percent of women in the band in 1990 and 2010. b. Find the change in percent of women in the band from 1990 to 2010. c. Find the change in the number of band members from 1990 to 2010. d. Find the percent change in the size of the band from 1990 to 2010. e. Find the percent change in the number of women band members from 1990 to 2010. f. Find the percent change in the percent of women band members (relative change) from 1990 to 2010.

Please show work in excel Mrs. Rio is an English professor at Pasadena City College who wants to see if there is a relationship between the students' grades and the hours they spend reading daily. Number of Students Grade Hours spend Reading (Daily) 1 79 2 2 32 0 3 89 3 4 100 5 5 84 4 6 7 90 66 5 2 7 79 4 8 56 5 9 77 5 10 88 3 Is there a direct or indirect relationship between Grades and number of hours reading? Is it weak or strong? Find and interpret the correlation coefficient What is the linear regression model? Predict the grade for a student who read 3.5 hours At 6% level of significant, can we predict that there is a significant relationship between grades and number of hours reading? What percent of the variation in grades is accounted for by hours spent reading?

According to your textbook, the dependent variable is also called the    measure.  criterion. principle. standard. predictor.

Frequency 45 40 35 30 10 5 O 42 O 55 O no mode O 70 O 22 Use the histogram below to approximate the mode heart rate of adults in the gym. Heart Rates of Adults 55 60 65 70 75 80 85 Heart rate (beats per minute)

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The data below show the Fat and Calories in fast-food hamburgers. A model was created that can estimate the number of Calories in a burger when the Fat content is known. Complete parts a and b. Fat (g) Calories 18 30 34 35 39 39 43 415 580 595 565 640 675 665 a) Explain why you cannot use that model to estimate the fat content of a burger with 600 calories. Choose the correct answer below. A. The regression model was for predicting calories from fat, not the other way around. B. The regression model cannot extrapolate to the prediction value. C. The regression model was for predicting fat from calories, not the other way around. b) Using an appropriate model, estimate the fat content of a burger with 600 calories. Fat = x Calories + (Round to three decimal places as needed.) The fat content of a burger with 600 calories is grams. (Round to one decimal place as needed.)

aiming the communications device

Course Name Credit Hours Grade Algebra 3 B Chemistry 3 C Chemistry Lab 1 B Creative Writing 3 A Honors 2 A The table above represents Bob's grades from last semester.  What was Bob's GPA? Remember that A=4, B=3, C=2, D=1, F=0 on a 4-point GPA scale.  Round to two decimal places. A.) 3.86 B.) 3.01 C.) 3.17 D.) 2.38

SCUBA divers have maximum dive times they cannot exceed when going to different depths. The data in the table below show different depths with the maximum dive times in minutes. (Comma separated lists of the data are also provided below the table to ease in copying the data to R.) Depth in Feet (x) 50 60 70 80 90 100 x: 50, 60, 70, 80, 90, 100 y: 179, 166, 150, 138, 124, 110 Maximum Dive Time in Minutes (y) 179 166 150 138 124 110 1. Find the best fit line for the data. y = + x 2. Graph the scatter plot of the data together with the best fit line using R. (This portion of the problem is not graded.) 3. Predict the maximum dive time at a depth of 23 feet. Question Help: D Post to forum

Write a paragraph for each variable explaining what these statistics tell you about the kurtosis of the variables.