Question

3. A group of students was given a special test. The test was completed by various
in the following duration of time (in minutes):
17, 19, 20, 22, 24, 24, 28, 30, 30, 36
(1)Find the mean time taken by the students to complete the test.
(ii) Find the new mean, if another student who took 14 minutes is also included,​

Answer 1

Answer:

mean = sum of observation

---------------------------------

no. of observation

= 17+19+20+22+24+24+28+30+30+36

-------------------------------------------—-----------------

10

=. 250

--------. =. 25

10

ii. new mean 250 + 14 = 264

=. 264

----------. = 24

11

Step-by-step explanation:

please mark as brainlist