Answer:
B
Step-by-step explanation:
First thing to do here is to calculate the z-score
Mathematically;
z-score = (x-mean)/SD
here, x = 130, mean = 120 and SD = 10
Substituting these values
z-score = (130-120)/10 = 10/10 = 1
So the probability we want to calculate is;
P(z ≥ 1) = 1 - P(z <1)
From standard score table, P(z <1) = 0.15866
P(z ≥ 1) = 1-0.15866 = 0.84134
Answer:
Jacqui mistake is that she divided wrong because 3480 divided by 5 is 696
Step-by-step explanation:
Answer: 8,500
Step-by-step explanation: because when you multiply 500 17 times it is 8,500.
Step-by-step explanation:
the answer is
1) £30
2) £ 270
