Question

.

Answer 1

plz say Pic attachments

Answer 2

taking a look

Answer 3

Sorry don't think i have done this yet :(


Class interval Frequency
20 − 24 1000000
25 − 29 1100000
30 − 34 1150000
35 − 39 1250000
40 − 44 1375000
45 − 49 1325000
50 − 54 1200000
55 − 59 1100000
60 − 64 925000
65 − 69 775000
70 − 74 600000
75 − 79 550000
80 − 84 380000



Find the cumulative frequencies.
Give the answers without commas.
Class interval Cumulative Frequency
20 − 29

30 − 39

40 − 49

50 − 59

60 − 69

70 − 79

80 − 89

Answer 4

could you see the attachments?

Answer 5

Yes i could i just posted them above

Answer 6

20-29= 1000000+1100000
30-39= 1000000+1100000 +1150000+1250000
and so on

http://www.bbc.co.uk/schools/gcsebitesize/maths/data/representingdata3hirev5.shtml

Answer 7

what do i do for 80-89?
the chart only goes up to 84

Answer 8

?

Answer 9

you can only add what is given, so in that case 20-84=20-89