The table shows the number of hours that a grouped of students spent studying for the sat during their first week of preparation. the students each add 4 hours to their study times in the second week. what are the mean, median, mode, and range of times for the second week? student hours bob 19 james 10 karen 15 rosario 17 antoine 10 julio 16 maria 13

Mean = 18.30

Median= 19

Mode =14

Range = 9

Step-by-step explanation:

The given table shows the number of hours that a grouped of students spent studying for the SAT during their first week of preparation.

StudentHours

Bob19

James10

Karen15

Rosario17

Antoine10

Julio16

Maria13

After adding 4 hours, the table for the second week will be :-

StudentHours

Bob23

James14

Karen19

Rosario21

Antoine14

Julio20

Maria17

Number of students n= 7

Now, according to the second week table,

Mode =14 hours

Mean=

For median arrange the above table hours in ascending order,

14, 14, 17, 19, 20, 21, 23

Median=

Range = Highest - lowest =23-14=9

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

rotation point l

step-by-step explanation: