Answer:
Step-by-step explanation:
Given that 33.4% of people have sleepwalked.
Sample size n =1459
Sample favourable persons = 526
Sample proportion p = 
Sample proportion p is normal for large samples with mean = 0.334 and
std error = 
a) P(526 or more of the 1459 adults have sleepwalked.)

b) Yes, because hardly 1.4% is the probability
c) 33.4 is very less compared to the average. Either sample should be improved representing the population or population mean should be increased accordingly.
<em>3,2</em>
Step-by-step explanation:
Reflection across the x-axis:
(x,y) -> (x,-y)
In other words, you want to <u>change the sign of the y</u>.
(3,-2) -> (3,2)
Answer:
x=1/2,-2/3
Step-by-step explanation:
Answer:
x= -4 2/5
Step-by-step explanation:
firstly cross multiply 5/6=-4x/+2
5×+2=6×-4x
10=-24x
make x subject of formula
10/-24= ans
hope this helps
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7 x 4 = 28
To get 33 is you add 28 and 5 to get 33