The table below shows data from a survey about the amount of time students spend doing homework each week.
the table below shows data from a survey about the amount of time students spend doing homework each week. the students were either in college or in high school:
high low q1 q3 iqr median mean σ
college 50 5 7.5 15 7.5 11 13.8 6.4
high school 16 0 9.5 14.5 5 13 10.7 5.3

which of the choices below best describes how to measure the spread of this data?
(hint: use the minimum and maximum values to check for outliers.)
a. both spreads are best described with the iqr.
b. both spreads are best described with the standard deviation.
c. the college spread is best described by the iqr. the high school spread is best described by the standard deviation.
d. the college spread is best described by the standard deviation. the high school spread is best described by the iqr.

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation: