rolivhuwamphephu
Answered

Explore Westonci.ca, the leading Q&A site where experts provide accurate and helpful answers to all your questions. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

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​

Sagot :

Answer:

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.

Answer:

the person above is correct just to confirm

Step-by-step explanation:

hope this helps!

have a good day :)

We hope this was helpful. Please come back whenever you need more information or answers to your queries. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Westonci.ca is your go-to source for reliable answers. Return soon for more expert insights.