I think the answer would be
X=1.5
Y= -10 or -12 or 12
Sorry I'm not sure
Answer:
(6, -3)
Step-by-step explanation:
Answer:
Z = 3
Step-by-step explanation:
In a normal distribution, the Z score that corresponds with a data point x is calculated using the formula;

For the case given, the z score will be;

Answer:
5
Step-by-step explanation:
Answer: 10.53%
Step-by-step explanation:
George £89400 @ 9% = £8046 so income = £89400+£8046=£97446
Harris (Paris?) gets £447 more so 97446+447=£97893
and this represents sales of £89400 plus commission
so Harris' commission = £97893-£89400 = £8493
So last stage is what commission percentage is £8493 of original sales £89400 = 10.53%