Answered

Westonci.ca is the premier destination for reliable answers to your questions, brought to you by a community of experts. Get expert answers to your questions quickly and accurately from our dedicated community of professionals. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

a) Following are the marks obtained by 20 pupils of a class. Present the marks in frequency table and find the mean marks. 50, 90 70, 80, 50 40, 60, 40, 80, 50, 70, 70, 80 60, 40 70, 50, 70, 60, 70, ​

Sagot :

benjaminwhesuagboyin

Answer:

Represent the mark on frequency table as follows;

Marks Frequency

40 3

50 4

60 3

70 6

80 3

90 1

Mean= Sum of all the marks

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

Frequency

(40×3)+(50×4)+(60×3)+(70×6)+(80×3)+(90×1)

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

20

=2250

--------

20

=11.5

Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.