16. Bob made a picture graph of the marbles he and his friends have. How many more marbles does Bob have than Kayla? Explain ho you found the answer.

recent survey, 8 college graduates were each asked for the number of hours they work each week. Here \( 56,40,43,38,46,38,50,53 \) the range of the data set.

Se realizará un estudio sobre los promedios de estudiantes de preparatoria en una población de 9560 estudiantes. Se requiere un nivel de confianza del \( 99 \% \) y se estima un error del \( 4 \% \).

1. A US Travel Data Center survey conducted of 1500 People found that 585 people Said that they would take more vacations this year than last Year. Find: a. The \( 95 \% \) confidence interval for the true proportion of people who said they wou b. \( \begin{array}{l}\text { travel more this year. } 99 \% \text { confidence interval for the true proportion of people who said they wou } \\ \text { travel more this year. }\end{array} \) c. The \( 90 \% \) confidence interval for the true proportion of people who said they wou travel more this year.

The following list gives the number of public libraries in each of 11 citles. \[ 7,11,9,6,3,10,4,12,2,5,13 \] Send data to calculator Find the modes of this data set. If there is more than one mode, write them separated by commas. If there is no mode, click on "No mode."

From the following scenarios, choose which will likely have no correlation. Answer \[ \text { The number of tutoring sessions attended per week by college students and their first-semester grades } \] The number of books an adult reads each month and the length of their hair The weight of a dog and the number of commands known \( \square \) Ther of hours spent studying per week by students and their first-year GPA