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Mathematics 11 Online
OpenStudy (anonymous):

HELPPPP PLEASEE :A survey was conducted among 100 students of age groups 7-12 years and 13-18 years to find their favorite book genre. The students had to select any one genre out of detective, adventure, and biography. Out of the 50 students in the age group 7-12 years who participated in the survey, 23 liked adventure or biography. The total number of students of both age groups who liked detective books was 28. Using a two-way table, compute the total number of students in the age group 13-18 years who liked adventure or biography. 23 27 49 51

OpenStudy (amistre64):

what have you made for a table?

OpenStudy (anonymous):

@amistre64 Can you help me make one ?

OpenStudy (amistre64):

make a rectangle and subdivide it into 2 rows and 3 columns ... label it.

OpenStudy (amistre64):

use the draw button and give it a shot

OpenStudy (anonymous):

okay @amistre64

OpenStudy (anonymous):

|dw:1432950590967:dw|

OpenStudy (amistre64):

|dw:1432950788838:dw|

OpenStudy (amistre64):

now what are we told? Out of the 50 students in the age group 7-12 years who participated in the survey, 23 liked adventure or biography. out of 50, 23 like a or b, what should we do with these numbers? any ideas?

OpenStudy (anonymous):

put them in for a & b on the column

OpenStudy (amistre64):

sure, 23 for ab, and 50 for age1 row makes sense |dw:1432951010408:dw| now we told The total number of students of both age groups who liked detective books was 28. where does 28 go?

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