Answer:
To find how much money they shared first find the total parts
Which is
5 + 7 + 8 = 20
Deila's share is
5 /20 × £1600
= 1/4 × £1600 = £ 400
Edwin's share is
7/ 20 ×£1600 = £560
Freya's share is
8/20 × £1600
= 2/5 × £1600 = £640
Hope this helps you
Answer:
A 4/3
Step-by-step explanation:
to long to explain but its right
Answer:
ok
Step-by-step explanation:
Just add 4 on both sides then divide both sides by 4 and then you’ll get your answer. I hope that helps!
Answer:
a) 
D. 9.74
b) 
B. 74
Step-by-step explanation:
Part a
We have the following dataset given:
69 74 75 62 70 93 64 69 61 88 67 77 87 90 66 91 77 63 82 82 71 74 76 65 83
We can begin calculating the sample mean with the following formula:

And replacing we got:

Now we can calculate the sample deviation with the following formula:

And after replace we got:

Part b
For this case we need to sort the value on increasing way:
[1] 61 62 63 64 65 66 67 69 69 70 71 74 74 75 76 77 77 82 82 83 87 88 90 91 93
And the median would be the value in the position 13 and we got:
