Sum of the items in set of data Mean =
number of items in set of data
Range = Biggest data value - smallest data value.
The marks for 10 learners in the gr. 9 Mathematics test were as follow:
45
36 81 20 77 18 54 48 51 36
3.1
Arrange the marks in ascending order
3.2
Calculate the mean mark (percentage) for the 10 learners correct to one decimal.
3.3 Determine the range of marks
3.4
Determine the mode.
3.5 The mean of the following 3 marks is 20
24 A 21
Determine the value of A​

Below in bold.

Step-by-step explanation:

3.1.

In ascending order:

18 20 36 36 45 48 51 54 77 81

3.2

Mean =sum / 10 =

466/10

= 46.6.

Range = 81 - 18 = 63.

3.4

Mode = 36.  ( mode is most frequent occurring mark)

3.5.

24 + A + 21 = 3* 20

A = 60 - 24 - 21

= 15.

the person above is correct just to confirm

Step-by-step explanation:

hope this helps!

have a good day :)

24/56=hx^7

step-by-step explanation:

the correct answer is a) they believe they have a "just cause."

islamic terrorists justify their violent actions because they believe they have a "just cause."

every act of terrorism of islamic sects is done “in the name of allah”. that justifies their actions. islam people who commit those terrorist attacks are not afraid to die. that is why the attacks have horrible consequences. they know they are going to die and they are proud to do it because it is in the name of allah, so it is justified and is for a “good cause.”

since the very beginning of the conflict with israel, islam is fighting a “sacred war”, respecting the words stated in the qur’an. they fight against the domination of the western countries and to defend their occupied territories.