Answer:
1) 3
2) 1
3) 3
4) 2
5) 2
Step-by-step explanation:
please reply if you would like an explanation because my work was mental and I'd have to write it down for you
Answer:
mean=sum of all observations/no.of observations
mean =23+15+6+5+6/5
mean=55/5
mean=11
population mean =11
hope this answer helps
Answer:
The value of y when x = 90
y = 22.5
Step-by-step explanation:
<u><em>Step(i)</em></u>:-
The value of y is directly proportional to the value of x.
Y∝ X
y = k x
If y = 45 when x = 180
45 = k ( 180)

<u><em>Step(ii):</em></u>-
The value of y when x = 90
y = 0.25 × 90 = 22.5
y = 22.5